7.8
High
CVE-2026-62877 Stack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally
Description
Stack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 Version 1607 10.0 | 10.0.14393.0 → < 10.0.14393.9418 | 10.0.14393.9418 |
| Windows 10 Version 1809 10.0 | 10.0.17763.0 → < 10.0.17763.9121 | 10.0.17763.9121 |
| Windows 10 Version 21H2 10.0 | 10.0.19044.0 → < 10.0.19044.7663 | 10.0.19044.7663 |
| Windows 10 Version 22H2 10.0 | 10.0.19045.0 → < 10.0.19045.7663 | 10.0.19045.7663 |
| Windows 11 Version 23H2 10.0 | 10.0.22631.0 → < 10.0.22631.7517 | 10.0.22631.7517 |
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.9168 | 10.0.26100.9168 |
| Windows 11 Version 25H2 10.0 | 10.0.26200.0 → < 10.0.26200.9168 | 10.0.26200.9168 |
| Windows 11 version 26H1 10.0 | 10.0.28000.0 → < 10.0.28000.2704 | 10.0.28000.2704 |
| Windows Server 2012 6.2 | 6.2.9200.0 → < 6.2.9200.26280 | 6.2.9200.26280 |
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| Product | Affected versions | Fixed in |
|---|---|---|
| Windows Server 2012 (Server Core installation) 6.2 | 6.2.9200.0 → < 6.2.9200.26280 | 6.2.9200.26280 |
| Windows Server 2012 R2 6.3 | 6.3.9600.0 → < 6.3.9600.23338 | 6.3.9600.23338 |
| Windows Server 2012 R2 (Server Core installation) 6.3 | 6.3.9600.0 → < 6.3.9600.23338 | 6.3.9600.23338 |
| Windows Server 2016 10.0 | 10.0.14393.0 → < 10.0.14393.9418 | 10.0.14393.9418 |
| Windows Server 2016 (Server Core installation) 10.0 | 10.0.14393.0 → < 10.0.14393.9418 | 10.0.14393.9418 |
| Windows Server 2019 10.0 | 10.0.17763.0 → < 10.0.17763.9121 | 10.0.17763.9121 |
| Windows Server 2019 (Server Core installation) 10.0 | 10.0.17763.0 → < 10.0.17763.9121 | 10.0.17763.9121 |
| Windows Server 2022 10.0 | 10.0.20348.0 → < 10.0.20348.5499 | 10.0.20348.5499 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.33296 | 10.0.26100.33296 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.33296 | 10.0.26100.33296 |
| Microsoft Office 365 for Mac 1.0 | 1.0.0 → < 16.112.26090911 | 16.112.26090911 |
| Microsoft Office for Android 16.0 | 16.0.1 → < 16.0.20430.20000 | 16.0.20430.20000 |
| Microsoft Office LTSC for Mac 2021 16.0 | 16.0.1 → < 16.112.26090911 | 16.112.26090911 |
| Microsoft Office LTSC for Mac 2024 16.0 | 16.0.0 → < 16.112.26090911 | 16.112.26090911 |
References
- Windows Win32k Elevation of Privilege Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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