CVE-2026-33096

Published: Apr 14, 2026Modified: Oct 14, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

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

Affected (11)

Products: Microsoft: Windows 11 23h2, Windows 11 24h2, Windows 11 25h2, Windows 11 26h1, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

7 products

Windows 11 23h2

Windows 11 24h2

Windows 11 25h2

Windows 11 26h1

Windows Server 2022

Windows Server 2022 23h2

Windows Server 2025

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 11 23h2	version < 10.0.22631.6936
Microsoft Windows 11 23h2	version < 10.0.22631.6936
Microsoft Windows 11 24h2	version < 10.0.26100.8246
Microsoft Windows 11 24h2	version < 10.0.26100.8246
Microsoft Windows 11 25h2	version < 10.0.26200.8246
Microsoft Windows 11 25h2	version < 10.0.26200.8246
Microsoft Windows 11 26h1	version < 10.0.28000.1836
Microsoft Windows 11 26h1	version < 10.0.28000.1836
Microsoft Windows Server 2022	version < 10.0.20348.5020
Microsoft Windows Server 2022 23h2	version < 10.0.25398.2274
Microsoft Windows Server 2025	version < 10.0.26100.32690

Related CWEs

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33096

Source: secure@microsoft.com

MitigationVendor Advisory

Timeline

No history available yet.