{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability was identified in the Automation License Manager software before V5.2 that could be triggered by sending specially crafted packets to port 4410/tcp of an affected system. This could cause a denial of service preventing legitimate users from using the system.\n\nSiemens has released a new version for Automation License Manager and recommends to update to the latest version.",
        "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: https://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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-783261: Denial of Service Vulnerability in Automation License Manager (ALM) Before V5.2 - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-783261.html"
      },
      {
        "category": "self",
        "summary": "SSA-783261: Denial of Service Vulnerability in Automation License Manager (ALM) Before V5.2 - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-783261.json"
      }
    ],
    "title": "SSA-783261: Denial of Service Vulnerability in Automation License Manager (ALM) Before V5.2",
    "tracking": {
      "current_release_date": "2026-02-10T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-783261",
      "initial_release_date": "2012-12-12T00:00:00Z",
      "revision_history": [
        {
          "date": "2012-12-12T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2026-02-10T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Used CVE ID (CVE-2012-4691) instead of the deprecated SVE ID (SVE-2012-0001); Corrected CVSS vector; Updated SSA to current data model and support of csaf"
        }
      ],
      "status": "interim",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:intdot/\u003e=4.0|\u003c5.2",
                "product": {
                  "name": "Automation License Manager",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "Automation License Manager"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2012-4691",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Specially crafted packets sent to port 4410/tcp cause memory leaks within the application. This could allow a remote unauthenticated attacker to crash the application due to insufficient resources. This denial of service condition could prevent legitimate users from using subsequent products that rely on the affected application for license verification.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "If remote connections are needed, limit remote access to port 4410/tcp to trusted systems only",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "mitigation",
          "details": "On the Automation License Manager settings menu disable \"Allow Remote Connections\"",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.2 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/114358/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2012-4691"
    }
  ]
}