CVE-2026-81963
CISA KEV
ACT NOW
Priority: 0.00
BB Relevance:
0/100
Published: N/A
Modified: N/A
First seen: 2026-10-29
Status: pending_score
Description
Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM.
CISA Known Exploited Vulnerability
Vendor / Product
Microsoft — Windows
Date Added
2026-09-08
Remediation Due
2026-09-22
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-81963 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-81963
Affected Software (9)
| Vendor | Product | Version |
|---|---|---|
| microsoft | windows_11_23h2 | < 10.0.22631.7582 |
| microsoft | windows_11_23h2 | < 10.0.22631.7582 |
| microsoft | windows_11_24h2 | < 10.0.26100.9445 |
| microsoft | windows_11_24h2 | < 10.0.26100.9445 |
| microsoft | windows_11_25h2 | < 10.0.26200.9445 |
| microsoft | windows_11_25h2 | < 10.0.26200.9445 |
| microsoft | windows_11_26h1 | < 10.0.28000.2954 |
| microsoft | windows_11_26h1 | < 10.0.28000.2954 |
| microsoft | windows_server_2025 | < 10.0.26100.33438 |
References & Advisories (2)
US Government Resource
Patch
Vendor Advisory