High severity8.1NVD Advisory· Published Dec 9, 2025· Updated Apr 13, 2026
CVE-2025-14333
CVE-2025-14333
Description
Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, 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, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
38cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <146.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <140.6.0
- (no CPE)range: <=145
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <146.0
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <140.6.0
- (no CPE)range: <=145
- osv-coords32 versionspkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP6pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP7pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP6pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7
< 140.6.0-1.el9_7.alma.1+ 31 more
- (no CPE)range: < 140.6.0-1.el9_7.alma.1
- (no CPE)range: < 140.6.0-1.el9_7.alma.1
- (no CPE)range: < 140.6.0-1.el9_7.alma.1
- (no CPE)range: < 140.6.0-1.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-160000.1.1
- (no CPE)range: < 146.0-1.1
- (no CPE)range: < 140.6.0-150200.8.248.1
- (no CPE)range: < 140.6.0-bp160.1.1
- (no CPE)range: < 140.6.0-1.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-112.292.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-160000.1.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-150200.152.213.1
- (no CPE)range: < 140.6.0-160000.1.1
- (no CPE)range: < 140.6.0-112.292.1
- (no CPE)range: < 140.6.0-150200.8.248.1
- (no CPE)range: < 140.6.0-150200.8.248.1
- (no CPE)range: < 140.6.0-150200.8.248.1
- (no CPE)range: < 140.6.0-150200.8.248.1
Patches
Vulnerability mechanics
References
5- www.mozilla.org/security/advisories/mfsa2025-92/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-94/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-95/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-96/nvdVendor Advisory
- bugzilla.mozilla.org/buglist.cginvdBroken LinkIssue Tracking
News mentions
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