GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration
KEV Entry

CVE-2026-81963

Known Exploited Vulnerability Entry Previdian

Back to Catalog View Vulnerability
Entry Details
Confirmed Exploited

CVE-2026-81963

2026-09-08 07:00 UTC

Timestamps

2026-09-08

2026-09-08

Scope

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

References
  • {'id': 'CVE-2026-81963', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-81963'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2026-81963'}

8c4d1f9a-374d-4a2f-b219-4a81ea797413

Previdian
caeb2787-0d58-4236-9039-7c86c3e566f3

2026-09-09 07:01 UTC

2026-09-09 07:01 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2026-09-08T07:00:00.000Z",
  "ahead_of_cisa_kev": {
    "count": 12,
    "unit": "hour"
  },
  "cvss_score": 7.8,
  "cvss_severity": "HIGH",
  "epss_percentile": null,
  "epss_score": null,
  "feed": "Previdian (previdian.com)",
  "not_yet_in_cisa_kev": false,
  "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)",
  "title": "Windows Update Stack Elevation of Privilege Vulnerability",
  "used_in_malware": "unknown",
  "vendor": "Microsoft"
}
 -
Export Options
JSON Object JSON API View Full Catalog