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7.5

Windows HTTP.sys Denial-of-Service Vulnerability

CVE-2026-33096
Summary

An attacker can crash Windows HTTP.sys, disrupting network services. This affects Windows systems with HTTP.sys enabled. Patch your Windows systems to prevent potential service disruptions.

Original title
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Original description
Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
nvd CVSS3.1 7.5
Vulnerability type
CWE-125 Out-of-bounds Read
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026