HIGHCVE-2026-33096Published Modified CNA microsoft
CVE-2026-33096: HTTP.sys Denial of Service Vulnerability
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Metrics
- CVSS v3.1
- 7.5
- Severity
- HIGH
- Fixed in
- 10.0.20348.5020
- Affected Products
- 9
Fix available
10.0.20348.502010.0.22631.693610.0.25398.227410.0.26100.824610.0.26100.3269010.0.26200.824610.0.28000.1836
Patch commits
Affected packages
- Microsoft / Windows 11 version 22H3< 10.0.22631.6936 (from 10.0.22631.0)
- Microsoft / Windows 11 Version 23H2< 10.0.22631.6936 (from 10.0.22631.0)
- Microsoft / Windows 11 Version 24H2< 10.0.26100.8246 (from 10.0.26100.0)
- Microsoft / Windows 11 Version 25H2< 10.0.26200.8246 (from 10.0.26200.0)
- Microsoft / Windows 11 version 26H1< 10.0.28000.1836 (from 10.0.28000.0)
- Microsoft / Windows Server 2022< 10.0.20348.5020 (from 10.0.20348.0)
- Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)< 10.0.25398.2274 (from 10.0.25398.0)
- Microsoft / Windows Server 2025< 10.0.26100.32690 (from 10.0.26100.0)
- Microsoft / Windows Server 2025 (Server Core installation)< 10.0.26100.32690 (from 10.0.26100.0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CReferences