🛡️ CVE-2026-55144 — windows-11-24h2

🟠 CVSS 7.1 — High ✅ No Known Exploit CWE-325 NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

Weakness class

CVE-2026-55144 is classified as CWE-325: Missing Cryptographic Step. A required step of a cryptographic algorithm is skipped, weakening the guarantees it should provide.

Affected software

CVE-2026-55144 is recorded against 5 packages.

  • windows-11-24h2 (fixed in 10.0.26100.8875)
  • windows-11-25h2 (fixed in 10.0.26200.8875)
  • windows-11-26h1 (fixed in 10.0.28000.2525)
  • windows-server-2022 (fixed in 10.0.20348.5386)
  • windows-server-2025 (fixed in 10.0.26100.33158)

Timeline and source

Published on 14 July 2026 and last revised on 21 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

msrc.microsoft.com

Details

Severity HIGH
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE CWE-325
Public Exploit ✅ No
Source NVD
Published 2026-07-14
Updated 2026-08-11
Modified 2026-07-21

Affected Packages

Software From version Fixed in
windows-11-24h2 — 10.0.26100.8875
windows-11-25h2 — 10.0.26200.8875
windows-11-26h1 — 10.0.28000.2525
windows-server-2022 — 10.0.20348.5386
windows-server-2025 — 10.0.26100.33158

Similar Threats

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