CVE-2026-50302

MEDIUM

Microsoft Windows 10 Version 21H2 - Windows Cryptographic Services Security Feature Bypass Vulnerability

Title source: rule
STIX 2.1

Description

Improper certificate validation in Windows Cryptographic Services allows an unauthorized attacker to bypass a security feature over a network.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Windows Cryptographic Services Security Feature Bypass Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50302

Scores

CVSS v3 4.2
EPSS 0.0024
EPSS Percentile 14.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-295
Status published
Products (17)
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7548
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7548
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 2022 10.0.20348.0 - 10.0.20348.5386
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_10_21h2 < 10.0.19044.7548 (3 CPE variants)
... and 7 more
Published Jul 14, 2026
Tracked Since Jul 14, 2026