CVE-2026-33096

EUVD-2026-22617
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 44%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_11_23h2
𝑥
< 10.0.22631.6936
microsoftwindows_11_23h2
𝑥
< 10.0.22631.6936
microsoftwindows_11_24h2
𝑥
< 10.0.26100.8246
microsoftwindows_11_24h2
𝑥
< 10.0.26100.8246
microsoftwindows_11_25h2
𝑥
< 10.0.26200.8246
microsoftwindows_11_25h2
𝑥
< 10.0.26200.8246
microsoftwindows_11_26h1
𝑥
< 10.0.28000.1836
microsoftwindows_11_26h1
𝑥
< 10.0.28000.1836
microsoftwindows_server_2022
𝑥
< 10.0.20348.5020
microsoftwindows_server_2022_23h2
𝑥
< 10.0.25398.2274
microsoftwindows_server_2025
𝑥
< 10.0.26100.32690
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 11
23H2 (arm64, x64)
KB5082052
24H2 (arm64, x64)
KB5083769
25H2 (arm64, x64)
KB5083769
26H1 (arm64, x64)
KB5083768
Windows Server 2022
23H2 Server Core
KB5082060
Server Core
KB5082142
Standard
KB5082142
Windows Server 2025
Server Core
KB5082063
Standard
KB5082063
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33096