{
  "document": {
    "title": "SSA-940818: UltraVNC Vulnerabilities in SIMATIC HMIs/WinCC Products",
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "publisher": {
      "name": "Siemens ProductCERT",
      "contact_details": "productcert@siemens.com",
      "category": "vendor",
      "namespace": "https://www.siemens.com"
    },
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "tracking": {
      "id": "SSA-940818",
      "status": "final",
      "version": "1",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-05-11T00:00:00Z",
          "summary": "Publication Date"
        }
      ],
      "initial_release_date": "2021-05-11T00:00:00Z",
      "current_release_date": "2021-05-11T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "UltraVNC vulnerabilities in the affected products listed below could allow remote code execution, information disclosure and Denial-of-Service attacks under certain conditions.\n\nSiemens has released updates for the affected products and recommends to update to the latest versions."
      },
      {
        "title": "General Recommendations",
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity"
      },
      {
        "title": "Additional Resources",
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories"
      },
      {
        "title": "Terms of Use",
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use."
      }
    ],
    "references": [
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf",
        "summary": "SSA-940818: UltraVNC Vulnerabilities in SIMATIC HMIs/WinCC Products - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-940818.txt",
        "summary": "SSA-940818: UltraVNC Vulnerabilities in SIMATIC HMIs/WinCC Products - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-940818.json",
        "summary": "SSA-940818: UltraVNC Vulnerabilities in SIMATIC HMIs/WinCC Products - CSAF Version"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16 Update 4",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
                }
              }
            ]
          },
          {
            "name": "SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16 Update 4",
                "category": "product_version_range",
                "product": {
                  "product_id": "2",
                  "name": "SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
                }
              }
            ]
          },
          {
            "name": "SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16 Update 4",
                "category": "product_version_range",
                "product": {
                  "product_id": "3",
                  "name": "SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
                }
              }
            ]
          },
          {
            "name": "SIMATIC WinCC Runtime Advanced",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16 Update 4",
                "category": "product_version_range",
                "product": {
                  "product_id": "4",
                  "name": "SIMATIC WinCC Runtime Advanced"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2019-8259",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1198 contains multiple memory leaks in VNC client code, which could allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This vulnerability appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1199."
        }
      ],
      "cve": "CVE-2019-8259",
      "cwe": {
        "id": "CWE-665",
        "name": "Improper Initialization"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8259 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8259 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8259 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8259 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8259.json",
          "summary": "CVE-2019-8259 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8260",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC client RRE decoder code, caused by multiplication overflow. This vulnerability appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200."
        }
      ],
      "cve": "CVE-2019-8260",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8260 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8260 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8260 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8260 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8260.json",
          "summary": "CVE-2019-8260 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8261",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1199 has a out-of-bounds read vulnerability in VNC code inside client CoRRE decoder, caused by multiplication overflow. This vulnerability appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1200."
        }
      ],
      "cve": "CVE-2019-8261",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8261 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8261 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8261 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8261 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8261.json",
          "summary": "CVE-2019-8261 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8262",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1203 has multiple heap buffer overflow vulnerabilities in VNC client code inside Ultra decoder, which could result in code execution. This vulnerability appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1204."
        }
      ],
      "cve": "CVE-2019-8262",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8262 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8262 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8262 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8262 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8262.json",
          "summary": "CVE-2019-8262 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8263",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1205 has a stack-based buffer overflow vulnerability in VNC client code inside ShowConnInfo routine, which could lead to a denial of service (DoS) condition. This vulnerability appear to be exploitable via network connectivity. User interaction is required to trigger this vulnerability. This vulnerability has been fixed in revision 1206."
        }
      ],
      "cve": "CVE-2019-8263",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8263 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8263 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8263 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8263 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8263.json",
          "summary": "CVE-2019-8263 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8264",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1203 has a out-of-bounds access vulnerability in VNC client inside Ultra2 decoder, which can potentially result in code execution. This vulnerability appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204."
        }
      ],
      "cve": "CVE-2019-8264",
      "cwe": {
        "id": "CWE-788",
        "name": "Access of Memory Location After End of Buffer"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8264 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8264 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8264 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8264 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8264.json",
          "summary": "CVE-2019-8264 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8265",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of SETPIXELS macro in VNC client code, which can potentially result in code execution. This vulnerability appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1208."
        }
      ],
      "cve": "CVE-2019-8265",
      "cwe": {
        "id": "CWE-788",
        "name": "Access of Memory Location After End of Buffer"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8265 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8265 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8265 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8265 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8265.json",
          "summary": "CVE-2019-8265 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8275",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1211 has multiple improper null termination vulnerabilities in VNC server code, which could result in out-of-bound data being accessed by remote users. This vulnerability appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212."
        }
      ],
      "cve": "CVE-2019-8275",
      "cwe": {
        "id": "CWE-170",
        "name": "Improper Null Termination"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8275 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8275 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8275 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8275 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8275.json",
          "summary": "CVE-2019-8275 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8277",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1211 contains multiple memory leaks in VNC server code, which could allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This vulnerability appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212."
        }
      ],
      "cve": "CVE-2019-8277",
      "cwe": {
        "id": "CWE-665",
        "name": "Improper Initialization"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8277 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8277 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8277 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8277 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8277.json",
          "summary": "CVE-2019-8277 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2019-8280",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside RAW decoder, which can potentially result in code execution. This vulnerability appear to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204."
        }
      ],
      "cve": "CVE-2019-8280",
      "cwe": {
        "id": "CWE-788",
        "name": "Access of Memory Location After End of Buffer"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update SIMATIC WinCC (TIA Portal) to V16 Update 4 or later version, and then update panel to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/"
        },
        {
          "product_ids": [
            "4"
          ],
          "category": "vendor_fix",
          "details": "Update to V16 Update 4 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/"
        },
        {
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "category": "mitigation",
          "details": "Restrict access to port 5900/tcp to trusted IP addresses only"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8280 - SIMATIC HMI Comfort Outdoor Panels 7\" & 15\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8280 - SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109775861/",
          "summary": "CVE-2019-8280 - SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F"
        },
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776018/",
          "summary": "CVE-2019-8280 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8280.json",
          "summary": "CVE-2019-8280 Mitre 5.0 json"
        }
      ]
    }
  ]
}