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Description

Missing cryptographic step in Windows CryptoAPI allows an authorized attacker to perform tampering locally.

PUBLISHED Reserved 2026-06-16 | Published 2026-07-14 | Updated 2026-07-14 | Assigner microsoft




HIGH: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

Problem types

CWE-325: Missing Cryptographic Step

Product status

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 10.0.28000.2525
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-2026-55144 (Windows Cryptography API: Next Generation (CNG) Tampering Vulnerability) vendor-advisory patch

cve.org (CVE-2026-55144)

nvd.nist.gov (CVE-2026-55144)

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