{"uuid": "8c4d1f9a-374d-4a2f-b219-4a81ea797413", "vulnerability": {"vulnId": "CVE-2026-81963", "altId": []}, "gcve": {"origin_uuid": "caeb2787-0d58-4236-9039-7c86c3e566f3", "object_uuid": "8c4d1f9a-374d-4a2f-b219-4a81ea797413"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2026-09-08T07:00:00+00:00"}, "timestamps": {"asserted_at": "2026-09-08T07:00:00+00:00", "recorded_at": "2026-09-09T07:00:01+00:00", "first_seen_at": "2026-09-08T07:00:00+00:00"}, "scope": {"notes": "Windows Update Stack Elevation of Privilege Vulnerability | Affected: Microsoft / Windows 11 version 23H2, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows Server 2025, Windows Server 2025 (Server Core installation) | CVSS: 7.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False"}, "evidence": [{"type": "public_report", "source": "previdian", "signal": "successful_exploitation", "confidence": 0.7, "details": {"feed": "Previdian (previdian.com)", "title": "Windows Update Stack Elevation of Privilege Vulnerability", "vendor": "Microsoft", "product": "Windows 11 version 23H2, Windows 11 Version 23H2, Windows 11 Version 24H2, Windows 11 Version 25H2, Windows 11 version 26H1, Windows Server 2025, Windows Server 2025 (Server Core installation)", "added_date": "2026-09-08T07:00:00.000Z", "cvss_score": 7.8, "epss_score": null, "cvss_severity": "HIGH", "epss_percentile": null, "used_in_malware": "unknown", "ahead_of_cisa_kev": {"unit": "hour", "count": 12}, "not_yet_in_cisa_kev": false}}], "references": [{"id": "CVE-2026-81963", "url": "https://www.cve.org/CVERecord?id=CVE-2026-81963"}, {"id": "previdian", "url": "https://previdian.com/CVE-2026-81963"}]}