Critical severity9.8NVD Advisory· Published Jan 7, 2025· Updated Jun 17, 2026
CVE-2025-0247
CVE-2025-0247
Description
Memory safety bugs present in Firefox 133 and Thunderbird 133. 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 134 and Thunderbird 134.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9- osv-coords5 versionspkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:apk/chainguard/firefox-esrpkg:apk/chainguard/firefoxpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:apk/wolfi/firefox
< 153.0-1.1+ 4 more
- (no CPE)range: < 153.0-1.1
- (no CPE)range: < 134-r0
- (no CPE)range: < 134.0-r0
- (no CPE)range: < 134.0-1.1
- (no CPE)range: < 134.0-r0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <134.0
- (no CPE)range: <134
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <134.0
- (no CPE)range: <134
Patches
Vulnerability mechanics
References
3- www.mozilla.org/security/advisories/mfsa2025-01/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-04/nvdVendor Advisory
- bugzilla.mozilla.org/buglist.cginvdBroken LinkIssue Tracking
News mentions
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