CVE-2026-69588 Windows TCP/IP Denial of Service Vulnerability

{
  "id": "508a626de315e935ec4047fd751cd7968a7d63e3be809107cbeaf34ce8c493cb",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69588",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-69588 Windows TCP/IP Denial of Service Vulnerability",
    "summary": "A memory-lifetime flaw in Windows TCP/IP could let an unauthorized attacker cause a denial of service over a network.",
    "evidence": "Missing release of memory after effective lifetime in Windows TCP/IP allows an unauthorized attacker to deny service over a network.",
    "products": [
      {
        "name": {
          "value": "Windows TCP/IP",
          "evidence": "CVE-2026-69588 Windows TCP/IP Denial of Service Vulnerability"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-69588",
        "evidence": "CVE-2026-69588 Windows TCP/IP Denial of Service Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 26533,
  "published_at": "2026-09-08T14:00:00+00:00"
}