Medium severity5.4NVD Advisory· Published Sep 16, 2025· Updated Jun 17, 2026
CVE-2025-10531
CVE-2025-10531
Description
Mitigation bypass in the Web Compatibility: Tooling component. This vulnerability was fixed in Firefox 143 and Thunderbird 143.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <143.0
- (no CPE)range: <143
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <143.0
- (no CPE)range: <143
- osv-coords5 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweed
< 143-r0+ 4 more
- (no CPE)range: < 143-r0
- (no CPE)range: < 0
- (no CPE)range: < 143-r0
- (no CPE)range: < 143.0-1.1
- (no CPE)range: < 153.0-1.1
Patches
Vulnerability mechanics
References
3- www.mozilla.org/security/advisories/mfsa2025-73/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-77/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
News mentions
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