CVE-2026-70067
High
Description
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
SeverityHigh
CVSS7.0
Exploit probability—
Product
Windows 10 Version 1607
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- Microsoft Windows 10 Version 160710.0.14393.9512 or later
- Microsoft Windows 10 Version 180910.0.17763.9245 or later
- Microsoft Windows 10 Version 21H210.0.19044.7725 or later
- Microsoft Windows 10 Version 22H210.0.19045.7725 or later
- Microsoft Windows 11 version 23H210.0.22631.7582 or later
- Microsoft Windows 11 Version 23H210.0.22631.7582 or later
- Microsoft Windows 11 Version 24H210.0.26100.9445 or later
- Microsoft Windows 11 Version 25H210.0.26200.9445 or later
- Microsoft Windows 11 version 26H110.0.28000.2954 or later
- Microsoft Windows Server 20126.2.9200.26349 or later
- Microsoft Windows Server 2012 (Server Core installation)6.2.9200.26349 or later
- Microsoft Windows Server 2012 R26.3.9600.23398 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1607 | 10.0.14393.0 ≤ v < 10.0.14393.9512 | 10.0.14393.9512 |
| Microsoft Windows 10 Version 1809 | 10.0.17763.0 ≤ v < 10.0.17763.9245 | 10.0.17763.9245 |
| Microsoft Windows 10 Version 21H2 | 10.0.19044.0 ≤ v < 10.0.19044.7725 | 10.0.19044.7725 |
| Microsoft Windows 10 Version 22H2 | 10.0.19045.0 ≤ v < 10.0.19045.7725 | 10.0.19045.7725 |
| Microsoft Windows 11 version 23H2 | 10.0.22631.0 ≤ v < 10.0.22631.7582 | 10.0.22631.7582 |
| Microsoft Windows 11 Version 23H2 | 10.0.22631.0 ≤ v < 10.0.22631.7582 | 10.0.22631.7582 |
| Microsoft Windows 11 Version 24H2 | 10.0.26100.0 ≤ v < 10.0.26100.9445 | 10.0.26100.9445 |
| Microsoft Windows 11 Version 25H2 | 10.0.26200.0 ≤ v < 10.0.26200.9445 | 10.0.26200.9445 |
| Microsoft Windows 11 version 26H1 | 10.0.28000.0 ≤ v < 10.0.28000.2954 | 10.0.28000.2954 |
| Microsoft Windows Server 2012 | 6.2.9200.0 ≤ v < 6.2.9200.26349 | 6.2.9200.26349 |
| Microsoft Windows Server 2012 (Server Core installation) | 6.2.9200.0 ≤ v < 6.2.9200.26349 | 6.2.9200.26349 |
| Microsoft Windows Server 2012 R2 | 6.3.9600.0 ≤ v < 6.3.9600.23398 | 6.3.9600.23398 |
| Microsoft Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 ≤ v < 6.3.9600.23398 | 6.3.9600.23398 |
| Microsoft Windows Server 2016 | 10.0.14393.0 ≤ v < 10.0.14393.9512 | 10.0.14393.9512 |
| Microsoft Windows Server 2016 (Server Core installation) | 10.0.14393.0 ≤ v < 10.0.14393.9512 | 10.0.14393.9512 |
| Microsoft Windows Server 2019 | 10.0.17763.0 ≤ v < 10.0.17763.9245 | 10.0.17763.9245 |
| Microsoft Windows Server 2019 (Server Core installation) | 10.0.17763.0 ≤ v < 10.0.17763.9245 | 10.0.17763.9245 |
| Microsoft Windows Server 2022 | 10.0.20348.0 ≤ v < 10.0.20348.5622 | 10.0.20348.5622 |
| Microsoft Windows Server 2025 | 10.0.26100.0 ≤ v < 10.0.26100.33438 | 10.0.26100.33438 |
| Microsoft Windows Server 2025 (Server Core installation) | 10.0.26100.0 ≤ v < 10.0.26100.33438 | 10.0.26100.33438 |
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