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CVE-2025-10531

5.4 medium SSVC exploitation: none Modified
NVD · CVE.org

Mitigation bypass in the Web Compatibility: Tooling component. This vulnerability was fixed in Firefox 143 and Thunderbird 143.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.4 · mozillaNVD modified 2026-10-18 21:10

Affected (CPE criteria) 2

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

References 3