{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Gao Jian"
        ],
        "summary": "reporting these vulnerabilities to Siemens."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "SIMATIC S7-1200 CPU family before V4.7 is affected by two denial of service vulnerabilities.\n\nSiemens has released new versions for the affected products and recommends to update to the latest versions.",
        "title": "Summary"
      },
      {
        "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\u0027 operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
        "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": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.",
        "title": "Terms of Use"
      },
      {
        "category": "legal_disclaimer",
        "text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
        "title": "Legal Notice"
      },
      {
        "category": "other",
        "text": "This CISA CSAF advisory was converted from Siemens ProductCERT\u0027s CSAF advisory.",
        "title": "Advisory Conversion Disclaimer"
      },
      {
        "category": "other",
        "text": "Critical Manufacturing",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-224824: Denial of Service Vulnerabilities in SIMATIC S7-1200 CPU Family Before V4.7 - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-224824.json"
      },
      {
        "category": "self",
        "summary": "SSA-224824: Denial of Service Vulnerabilities in SIMATIC S7-1200 CPU Family Before V4.7 - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-224824.html"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-25-044-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-044-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-25-044-01 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-044-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Siemens SIMATIC S7-1200 CPU Family",
    "tracking": {
      "current_release_date": "2025-05-06T06:00:00.000000Z",
      "generator": {
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          "version": "1.0.0"
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      "id": "ICSA-25-044-01",
      "initial_release_date": "2025-02-11T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2025-02-11T00:00:00.000000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2025-05-06T06:00:00.000000Z",
          "legacy_version": "Revision",
          "number": "2",
          "summary": "Revision - Fixing typos"
        }
      ],
      "status": "final",
      "version": "2"
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        "category": "vendor",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-24811",
      "cwe": {
        "id": "CWE-404",
        "name": "Improper Resource Shutdown or Release"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Affected devices do not process correctly certain special crafted packets sent to port 80/tcp, which could allow an unauthenticated attacker to cause a denial of service in the device.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
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          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
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          "CSAFPID-0009",
          "CSAFPID-0010",
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          "CSAFPID-0017",
          "CSAFPID-0018",
          "CSAFPID-0019",
          "CSAFPID-0020",
          "CSAFPID-0021",
          "CSAFPID-0022",
          "CSAFPID-0023",
          "CSAFPID-0024",
          "CSAFPID-0025",
          "CSAFPID-0026",
          "CSAFPID-0027",
          "CSAFPID-0028",
          "CSAFPID-0029",
          "CSAFPID-0030",
          "CSAFPID-0031",
          "CSAFPID-0032",
          "CSAFPID-0033",
          "CSAFPID-0034",
          "CSAFPID-0035",
          "CSAFPID-0036",
          "CSAFPID-0037",
          "CSAFPID-0038",
          "CSAFPID-0039",
          "CSAFPID-0040",
          "CSAFPID-0041",
          "CSAFPID-0042",
          "CSAFPID-0043",
          "CSAFPID-0044",
          "CSAFPID-0045",
          "CSAFPID-0046",
          "CSAFPID-0047",
          "CSAFPID-0048"
        ]
      },
      "remediations": [
        {
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          "details": "Update to V4.7 or later version",
          "product_ids": [
            "CSAFPID-0020",
            "CSAFPID-0021",
            "CSAFPID-0022",
            "CSAFPID-0023",
            "CSAFPID-0024",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0027",
            "CSAFPID-0028",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0031",
            "CSAFPID-0032",
            "CSAFPID-0033",
            "CSAFPID-0034",
            "CSAFPID-0035",
            "CSAFPID-0036",
            "CSAFPID-0037",
            "CSAFPID-0038",
            "CSAFPID-0039",
            "CSAFPID-0040",
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        },
        {
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            "CSAFPID-0007",
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            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
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            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109976907/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020",
            "CSAFPID-0021",
            "CSAFPID-0022",
            "CSAFPID-0023",
            "CSAFPID-0024",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0027",
            "CSAFPID-0028",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0031",
            "CSAFPID-0032",
            "CSAFPID-0033",
            "CSAFPID-0034",
            "CSAFPID-0035",
            "CSAFPID-0036",
            "CSAFPID-0037",
            "CSAFPID-0038",
            "CSAFPID-0039",
            "CSAFPID-0040",
            "CSAFPID-0041",
            "CSAFPID-0042",
            "CSAFPID-0043",
            "CSAFPID-0044",
            "CSAFPID-0045",
            "CSAFPID-0046",
            "CSAFPID-0047",
            "CSAFPID-0048"
          ]
        }
      ],
      "title": "CVE-2025-24811"
    },
    {
      "cve": "CVE-2025-24812",
      "cwe": {
        "id": "CWE-1286",
        "name": "Improper Validation of Syntactic Correctness of Input"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Affected devices do not process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-0010",
          "CSAFPID-0011",
          "CSAFPID-0012",
          "CSAFPID-0013",
          "CSAFPID-0014",
          "CSAFPID-0015",
          "CSAFPID-0016",
          "CSAFPID-0017",
          "CSAFPID-0018",
          "CSAFPID-0019",
          "CSAFPID-0020",
          "CSAFPID-0021",
          "CSAFPID-0022",
          "CSAFPID-0023",
          "CSAFPID-0024",
          "CSAFPID-0025",
          "CSAFPID-0026",
          "CSAFPID-0027",
          "CSAFPID-0028",
          "CSAFPID-0029",
          "CSAFPID-0030",
          "CSAFPID-0031",
          "CSAFPID-0032",
          "CSAFPID-0033",
          "CSAFPID-0034",
          "CSAFPID-0035",
          "CSAFPID-0036",
          "CSAFPID-0037",
          "CSAFPID-0038",
          "CSAFPID-0039",
          "CSAFPID-0040",
          "CSAFPID-0041",
          "CSAFPID-0042",
          "CSAFPID-0043",
          "CSAFPID-0044",
          "CSAFPID-0045",
          "CSAFPID-0046",
          "CSAFPID-0047",
          "CSAFPID-0048"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V4.7 or later version",
          "product_ids": [
            "CSAFPID-0020",
            "CSAFPID-0021",
            "CSAFPID-0022",
            "CSAFPID-0023",
            "CSAFPID-0024",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0027",
            "CSAFPID-0028",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0031",
            "CSAFPID-0032",
            "CSAFPID-0033",
            "CSAFPID-0034",
            "CSAFPID-0035",
            "CSAFPID-0036",
            "CSAFPID-0037",
            "CSAFPID-0038",
            "CSAFPID-0039",
            "CSAFPID-0040",
            "CSAFPID-0041",
            "CSAFPID-0042",
            "CSAFPID-0043",
            "CSAFPID-0044",
            "CSAFPID-0045",
            "CSAFPID-0046",
            "CSAFPID-0047",
            "CSAFPID-0048"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109976907/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.7 or later version",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109976907/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010",
            "CSAFPID-0011",
            "CSAFPID-0012",
            "CSAFPID-0013",
            "CSAFPID-0014",
            "CSAFPID-0015",
            "CSAFPID-0016",
            "CSAFPID-0017",
            "CSAFPID-0018",
            "CSAFPID-0019",
            "CSAFPID-0020",
            "CSAFPID-0021",
            "CSAFPID-0022",
            "CSAFPID-0023",
            "CSAFPID-0024",
            "CSAFPID-0025",
            "CSAFPID-0026",
            "CSAFPID-0027",
            "CSAFPID-0028",
            "CSAFPID-0029",
            "CSAFPID-0030",
            "CSAFPID-0031",
            "CSAFPID-0032",
            "CSAFPID-0033",
            "CSAFPID-0034",
            "CSAFPID-0035",
            "CSAFPID-0036",
            "CSAFPID-0037",
            "CSAFPID-0038",
            "CSAFPID-0039",
            "CSAFPID-0040",
            "CSAFPID-0041",
            "CSAFPID-0042",
            "CSAFPID-0043",
            "CSAFPID-0044",
            "CSAFPID-0045",
            "CSAFPID-0046",
            "CSAFPID-0047",
            "CSAFPID-0048"
          ]
        }
      ],
      "title": "CVE-2025-24812"
    }
  ]
}