Description
Integer underflow (wrap or wraparound) in Windows Update Stack allows an authorized attacker to disclose information locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.9974 | 10.0.26100.9974 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 – < 10.0.26200.9974 | 10.0.26200.9974 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 – < 10.0.28000.3501 | 10.0.28000.3501 |
| Microsoft | Windows 11 Version 26H2 | 10.0.26300.0 – < 10.0.26300.9974 | 10.0.26300.9974 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.33822 | 10.0.26100.33822 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.33822 | 10.0.26100.33822 |
Advisories 2
- WID-SEC-2026-4478 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- MSRC-CVE-2026-122162 Windows Update Stack Information Disclosure Vulnerability Microsoft Security Response Center · Nov 10, 2026
References
- Windows Update Stack Information Disclosure Vulnerability vendor-advisory patch