CVE-2026-50420

MEDIUM

Microsoft Windows 11 Version 24H2 < 10.0.26100.8875 - Out-of-Bounds Access

Title source: rule
STIX 2.1

Description

Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to disclose information locally.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
HTTP.sys Information Disclosure Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50420

Scores

CVSS v3 6.2
EPSS 0.0038
EPSS Percentile 30.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (11)
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8875
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8875
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2269
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2525
Microsoft/Windows Server 2025 10.0.26100.0 - 10.0.26100.33158
Microsoft/Windows Server 2025 (Server Core installation) 10.0.26100.0 - 10.0.26100.33158
microsoft/windows_11_24h2 < 10.0.26100.8875 (2 CPE variants)
microsoft/windows_11_25h2 < 10.0.26200.8875 (2 CPE variants)
microsoft/windows_11_26h1 < 10.0.28000.2269
microsoft/windows_11_26h1 < 10.0.28000.2525
... and 1 more
Published Jul 14, 2026
Tracked Since Jul 14, 2026