High severity7.3NVD Advisory· Published May 27, 2025· Updated Apr 13, 2026
CVE-2025-5272
CVE-2025-5272
Description
Memory safety bugs present in Firefox 138 and Thunderbird 138. 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 139 and Thunderbird 139.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <139.0
- (no CPE)range: <139
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <139.0
- (no CPE)range: <139
Patches
Vulnerability mechanics
References
3- www.mozilla.org/security/advisories/mfsa2025-42/nvdVendor Advisory
- bugzilla.mozilla.org/buglist.cginvdBroken Link
- www.mozilla.org/security/advisories/mfsa2025-45/nvd
News mentions
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