CVE-2026-81963
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
- Published Sep 8, 2026
- CVSS 7.8 high
- 0.4% chance of exploitation in the next 30 days (EPSS)
- In CISA's Known Exploited Vulnerabilities catalog
- A fix is available
Affected software
In the news
- ⚡ Weekly Recap: NetScaler and FortiMail 0-Days, AI Coding Leaks, Spectre v2 and Ransomware Arrests The Hacker News ·
- Microsoft security updates for September 2026 JPCERT/CC ·
- Microsoft Patch Tuesday for September 2026 — Snort rules and prominent vulnerabilities Cisco Talos ·
- Microsoft Plugs Nearly 1,000 Security Holes Krebs on Security ·