🔐 CVE Alert

CVE-2025-14332

HIGH 7.3

Memory safety bugs fixed in Firefox 146 and Thunderbird 146

CVSS Score
7.3
EPSS Score
0.0%
EPSS Percentile
0th

Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 146 and Thunderbird 146.

Vendor mozilla
Product firefox
Ecosystems
Industries
Technology
Published Dec 9, 2025
Last Updated Apr 13, 2026
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Affected Versions

Mozilla / Firefox
All versions affected
Mozilla / Thunderbird
All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗
bugzilla.mozilla.org: https://bugzilla.mozilla.org/buglist.cgi?bug_id=1963153%2C1985058%2C1995637%2C1997118 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-92/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2025-95/

Credits

Jon Coppeard, Maurice Dauer and the Mozilla Fuzzing Team