CVE-2026-55144 HIGH

CVE-2026-55144: Windows Cryptography API: Next Generation (CNG) Tampering Vulnerability

Vendor Microsoft
Product Windows 11 Version 24H2
Weakness CWE-325
Published July 14, 2026
Last update September 8, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

July 14, 2026 CVE published
September 8, 2026 Record updated