CVE-2026-72964 Windows Internet Connection Sharing (ICS) Tampering Vulnerability

{
  "id": "165f81cb9ef0c7109d6be24a32bbccaeb28bb738be3fff89d84448796b2a0d94",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72964",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-72964 Windows Internet Connection Sharing (ICS) Tampering Vulnerability",
    "summary": "The announcement describes a local tampering vulnerability in Windows Internet Connection Sharing (ICS) involving missing authentication for a critical function.",
    "evidence": "Missing authentication for critical function in Windows Internet Connection Sharing (ICS) allows an authorized attacker to perform tampering locally.",
    "products": [
      {
        "name": {
          "value": "Windows Internet Connection Sharing (ICS)",
          "evidence": "Windows Internet Connection Sharing (ICS)"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-72964",
        "evidence": "CVE-2026-72964 Windows Internet Connection Sharing (ICS) Tampering Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 27024,
  "published_at": "2026-09-08T14:00:00+00:00"
}