Description
Stack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft Office 365 for Mac | 1.0.0 – < 16.112.26090911 | 16.112.26090911 |
| Microsoft | Microsoft Office for Android | 16.0.1 – < 16.0.20430.20000 | 16.0.20430.20000 |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 – < 16.112.26090911 | 16.112.26090911 |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 – < 16.112.26090911 | 16.112.26090911 |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – < 10.0.14393.9418 | 10.0.14393.9418 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – < 10.0.17763.9121 | 10.0.17763.9121 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0 – < 10.0.19044.7663 | 10.0.19044.7663 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.7663 | 10.0.19045.7663 |
| Microsoft | Windows 11 version 23H2 | 10.0.22631.0 – < 10.0.22631.7517 | 10.0.22631.7517 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.9168 | 10.0.26100.9168 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0 – < 10.0.26200.9168 | 10.0.26200.9168 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0 – < 10.0.28000.2704 | 10.0.28000.2704 |
| Microsoft | Windows Server 2012 | 6.2.9200.0 – < 6.2.9200.26280 | 6.2.9200.26280 |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 – < 6.2.9200.26280 | 6.2.9200.26280 |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 – < 6.3.9600.23338 | 6.3.9600.23338 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 – < 6.3.9600.23338 | 6.3.9600.23338 |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – < 10.0.14393.9418 | 10.0.14393.9418 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – < 10.0.14393.9418 | 10.0.14393.9418 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < 10.0.17763.9121 | 10.0.17763.9121 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < 10.0.17763.9121 | 10.0.17763.9121 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.5499 | 10.0.20348.5499 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.33296 | 10.0.26100.33296 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.33296 | 10.0.26100.33296 |
Advisories 3
- MSRC-CVE-2026-62877 Windows Win32k Elevation of Privilege Vulnerability Microsoft Security Response Center · Oct 28, 2026
- WID-SEC-2026-2756 Microsoft Windows Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 30, 2026
- NCSC-2026-0284 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Aug 11, 2026
References
- Windows Win32k Elevation of Privilege Vulnerability vendor-advisory patch