8.2
High
CVE-2026-81354 Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally
Description
Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 Version 1809 10.0 | 10.0.17763.0 → < 10.0.17763.9245 | 10.0.17763.9245 |
| Windows 10 Version 21H2 10.0 | 10.0.19044.0 → < 10.0.19044.7725 | 10.0.19044.7725 |
| Windows 10 Version 22H2 10.0 | 10.0.19045.0 → < 10.0.19045.7725 | 10.0.19045.7725 |
| Windows 11 Version 23H2 10.0 | 10.0.22631.0 → < 10.0.22631.7582 | 10.0.22631.7582 |
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.9445 | 10.0.26100.9445 |
| Windows 11 Version 25H2 10.0 | 10.0.26200.0 → < 10.0.26200.9445 | 10.0.26200.9445 |
| Windows 11 version 26H1 10.0 | 10.0.28000.0 → < 10.0.28000.2954 | 10.0.28000.2954 |
| Windows Server 2019 10.0 | 10.0.17763.0 → < 10.0.17763.9245 | 10.0.17763.9245 |
| Windows Server 2019 (Server Core installation) 10.0 | 10.0.17763.0 → < 10.0.17763.9245 | 10.0.17763.9245 |
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