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Description

Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

PUBLISHED Reserved 2026-03-17 | Published 2026-04-14 | Updated 2026-06-01 | Assigner microsoft




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Problem types

CWE-125: Out-of-bounds Read

Product status

10.0.22631.0 (custom) before 10.0.22631.6936
affected

10.0.22631.0 (custom) before 10.0.22631.6936
affected

10.0.26100.0 (custom) before 10.0.26100.8246
affected

10.0.26200.0 (custom) before 10.0.26200.8246
affected

10.0.28000.0 (custom) before 10.0.28000.1836
affected

10.0.20348.0 (custom) before 10.0.20348.5020
affected

10.0.25398.0 (custom) before 10.0.25398.2274
affected

10.0.26100.0 (custom) before 10.0.26100.32690
affected

10.0.26100.0 (custom) before 10.0.26100.32690
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33096 (HTTP.sys Denial of Service Vulnerability) vendor-advisory patch

cve.org (CVE-2026-33096)

nvd.nist.gov (CVE-2026-33096)

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