CVE-2026-77896 Windows Remote Desktop Client Denial of Service Vulnerability

{
  "id": "fe3658d2f44b87d9ff7de295e760efafc7f9f270bfb4d5c5e2235ad33295f2f3",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77896",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-77896 Windows Remote Desktop Client Denial of Service Vulnerability",
    "summary": "An integer overflow or wraparound in Remote Desktop Client may allow an unauthorized attacker to cause a denial of service over a network.",
    "evidence": "Integer overflow or wraparound in Remote Desktop Client allows an unauthorized attacker to deny service over a network.",
    "products": [
      {
        "name": {
          "value": "Windows Remote Desktop Client",
          "evidence": "CVE-2026-77896 Windows Remote Desktop Client Denial of Service Vulnerability"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-77896",
        "evidence": "CVE-2026-77896 Windows Remote Desktop Client Denial of Service Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 26688,
  "published_at": "2026-09-08T14:00:00+00:00"
}