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Description

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

PUBLISHED Reserved 2026-06-04 | Published 2026-07-14 | Updated 2026-07-14 | Assigner microsoft




MEDIUM: 4.2CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C

Problem types

CWE-295: Improper Certificate Validation

Product status

10.0.19044.0 (custom) before 10.0.19044.7548
affected

10.0.19045.0 (custom) before 10.0.19045.7548
affected

10.0.26100.0 (custom) before 10.0.26100.8875
affected

10.0.26200.0 (custom) before 10.0.26200.8875
affected

10.0.28000.0 (custom) before 10.0.28000.2269
affected

10.0.20348.0 (custom) before 10.0.20348.5386
affected

10.0.26100.0 (custom) before 10.0.26100.33158
affected

10.0.26100.0 (custom) before 10.0.26100.33158
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50302 (Windows Cryptographic Services Security Feature Bypass Vulnerability) vendor-advisory patch

cve.org (CVE-2026-50302)

nvd.nist.gov (CVE-2026-50302)

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