Critical severity9.8NVD Advisory· Published Jan 13, 2026· Updated Apr 13, 2026
CVE-2026-0892
CVE-2026-0892
Description
Memory safety bugs present in Firefox 146 and Thunderbird 146. 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 147 and Thunderbird 147.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
8cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <147.0
- (no CPE)range: <=146
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <147.0
- (no CPE)range: <=146
- osv-coords4 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweed
< 147-r0+ 3 more
- (no CPE)range: < 147-r0
- (no CPE)range: < 147-r0
- (no CPE)range: < 147-r0
- (no CPE)range: < 147.0-1.1
Patches
Vulnerability mechanics
References
3- www.mozilla.org/security/advisories/mfsa2026-01/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-04/nvdVendor Advisory
- bugzilla.mozilla.org/buglist.cginvdBroken Link
News mentions
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