CVE-2026-33096
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Published Apr 14, 2026 · updated Oct 14, 2026 · Microsoft Windows 11 version 23H2
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Timeline
Detection, updates, and resolution for this record.
Apr 14, 2026 · NIST NVD
Detected
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Oct 14, 2026 · NIST NVD
Updated
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Affected
- cpe microsoft/windows 11 23h2version unspecified
- cpe microsoft/windows 11 24h2version unspecified
- cpe microsoft/windows 11 25h2version unspecified
- cpe microsoft/windows 11 26h1version unspecified
- vendor Microsoft Windows 11 Version 23H2version unspecified
- vendor Microsoft Windows 11 Version 24H2version unspecified
- vendor Microsoft Windows 11 Version 25H2version unspecified
- vendor Microsoft Windows 11 version 23H2version unspecified
- vendor Microsoft Windows 11 version 26H1version unspecified
- vendor Microsoft Windows Server 2022version unspecified
- vendor Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)version unspecified
- vendor Microsoft Windows Server 2025version unspecified
Sources
- CIRCL Vulnerability LookupCVE-2026-33096
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
vulnerability.circl.lu - CVE.orgCVE-2026-33096
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-33096
30-day exploitation probability 1.2%
first.org - NIST NVDCVE-2026-33096
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
nvd.nist.gov