7.5
High
CVE-2026-33096 Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network
Description
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 11 version 22H3 10.0 | 10.0.22631.0 → < 10.0.22631.6936 | 10.0.22631.6936 |
| Windows 11 Version 23H2 10.0 | 10.0.22631.0 → < 10.0.22631.6936 | 10.0.22631.6936 |
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.8246 | 10.0.26100.8246 |
| Windows 11 Version 25H2 10.0 | 10.0.26200.0 → < 10.0.26200.8246 | 10.0.26200.8246 |
| Windows 11 version 26H1 10.0 | 10.0.28000.0 → < 10.0.28000.1836 | 10.0.28000.1836 |
| Windows Server 2022 10.0 | 10.0.20348.0 → < 10.0.20348.5020 | 10.0.20348.5020 |
| Windows Server 2022, 23H2 Edition (Server Core installation) 10.0 | 10.0.25398.0 → < 10.0.25398.2274 | 10.0.25398.2274 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.32690 | 10.0.26100.32690 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.32690 | 10.0.26100.32690 |
References
- HTTP.sys Denial of Service Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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