CVE-2026-68840 Windows USB Driver Elevation of Privilege Vulnerability

{
  "id": "9c2ed3966a439448fe9f073129dc6e2bbbebe741fb4f3f9f344ee0c0c54978bd",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68840",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-68840 Windows USB Driver Elevation of Privilege Vulnerability",
    "summary": "A race condition in the Windows USB Driver allows an authorized attacker to elevate privileges locally.",
    "evidence": "Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Driver allows an authorized attacker to elevate privileges locally.",
    "products": [
      {
        "name": {
          "value": "Windows USB Driver",
          "evidence": "in Windows USB Driver"
        },
        "prerequisites": [
          {
            "value": "an authorized attacker",
            "evidence": "allows an authorized attacker to elevate privileges locally"
          }
        ],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-68840",
        "evidence": "CVE-2026-68840 Windows USB Driver Elevation of Privilege Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 26793,
  "published_at": "2026-09-08T14:00:00+00:00"
}