CVE-2026-72931 Windows Secure Socket Tunneling Protocol (SSTP) Denial of Service Vulnerability

{
  "id": "b105d210be4c86e34c9004cba99263cb95573741c846e112e6ee5630acf27ab8",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72931",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-72931 Windows Secure Socket Tunneling Protocol (SSTP) Denial of Service Vulnerability",
    "summary": "A missing release of a resource after its effective lifetime in Windows SSTP allows an authorized attacker to cause a local denial of service.",
    "evidence": "Missing release of resource after effective lifetime in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to deny service locally.",
    "products": [
      {
        "name": {
          "value": "Windows Secure Socket Tunneling Protocol (SSTP)",
          "evidence": "Windows Secure Socket Tunneling Protocol (SSTP)"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-72931",
        "evidence": "CVE-2026-72931 Windows Secure Socket Tunneling Protocol (SSTP) Denial of Service Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 27011,
  "published_at": "2026-09-08T14:00:00+00:00"
}