HTTP.sys Denial of Service Vulnerability
- Published
- Last modified
- Status
- published
- Known exploitation
- Not listed in CISA KEV
- Fix
- Fixed in 10.0.14393.9234, 10.0.17763.8880, 10.0.19044.7417, 10.0.19045.7417, 10.0.22631.7219, and 5 more
- Public exploit
- None on Exploit-DB
- Exploitation: none
- Automatable: yes
- Technical impact: partial
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).
SSVC documentationSummary
Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network.
Affected versions
- Microsoft Windows 10 Version 1607
From 10.0.14393.0 · fixed in 10.0.14393.9234
- Microsoft Windows 10 Version 1809
From 10.0.17763.0 · fixed in 10.0.17763.8880
- Microsoft Windows 10 Version 21H2
From 10.0.19044.0 · fixed in 10.0.19044.7417
- Microsoft Windows 10 Version 22H2
From 10.0.19045.0 · fixed in 10.0.19045.7417
- Microsoft Windows 11 version 23H2
From 10.0.22631.0 · fixed in 10.0.22631.7219
- Microsoft Windows 11 Version 23H2
From 10.0.22631.0 · fixed in 10.0.22631.7219
- Microsoft Windows 11 Version 24H2
From 10.0.26100.0 · fixed in 10.0.26100.8655
- Microsoft Windows 11 Version 25H2
From 10.0.26200.0 · fixed in 10.0.26200.8655
- Microsoft Windows 11 version 26H1
From 10.0.28000.0 · fixed in 10.0.28000.2269
- Microsoft Windows Server 2016
From 10.0.14393.0 · fixed in 10.0.14393.9234
- Microsoft Windows Server 2016 (Server Core installation)
From 10.0.14393.0 · fixed in 10.0.14393.9234
- Microsoft Windows Server 2019
From 10.0.17763.0 · fixed in 10.0.17763.8880
- Microsoft Windows Server 2019 (Server Core installation)
From 10.0.17763.0 · fixed in 10.0.17763.8880
- Microsoft Windows Server 2022
From 10.0.20348.0 · fixed in 10.0.20348.5256
- Microsoft Windows Server 2025
From 10.0.26100.0 · fixed in 10.0.26100.32995
- Microsoft Windows Server 2025 (Server Core installation)
From 10.0.26100.0 · fixed in 10.0.26100.32995