High severity8.1NVD Advisory· Published May 27, 2025· Updated Apr 13, 2026
CVE-2025-5268
CVE-2025-5268
Description
Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. 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, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
38cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 3 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <139.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <128.11.0
- (no CPE)range: = 128.10
- (no CPE)range: = 138
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <128.11.0
- (no CPE)range: = 138
- 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%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/mozjs128&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/mozjs128&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%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%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%20SP7pkg:rpm/suse/mozjs128&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/mozjs128&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
< 128.11.0-1.el9_6.alma.1+ 31 more
- (no CPE)range: < 128.11.0-1.el9_6.alma.1
- (no CPE)range: < 128.11.0-1.el9_6.alma.1
- (no CPE)range: < 128.11.0-1.el9_6.alma.1
- (no CPE)range: < 128.11.0-1.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 139.0.1-1.1
- (no CPE)range: < 128.11.0-150200.8.221.1
- (no CPE)range: < 128.11.0-1.1
- (no CPE)range: < 128.14.0-160000.1.1
- (no CPE)range: < 128.12.0-1.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-112.262.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-150200.152.185.1
- (no CPE)range: < 128.11.0-112.262.1
- (no CPE)range: < 128.11.0-150200.8.221.1
- (no CPE)range: < 128.11.0-150200.8.221.1
- (no CPE)range: < 128.11.0-150200.8.221.1
- (no CPE)range: < 128.11.0-150200.8.221.1
- (no CPE)range: < 128.14.0-160000.1.1
- (no CPE)range: < 128.14.0-160000.1.1
Patches
Vulnerability mechanics
References
7- www.mozilla.org/security/advisories/mfsa2025-42/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-44/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-45/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-46/nvdVendor Advisory
- bugzilla.mozilla.org/buglist.cginvdBroken Link
- lists.debian.org/debian-lts-announce/2025/05/msg00043.htmlnvd
- lists.debian.org/debian-lts-announce/2025/05/msg00046.htmlnvd
News mentions
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