High severity8.8NVD Advisory· Published Apr 7, 2026· Updated Apr 13, 2026
CVE-2026-5732
CVE-2026-5732
Description
Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
29cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <149.0.2
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <140.9.1
- (no CPE)range: <149.0.2
- osv-coords26 versionspkg:apk/chainguard/firefoxpkg:apk/wolfi/firefoxpkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg: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%20SP7pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-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%2015%20SP6-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg: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%2015%20SP6pkg: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%20SP7pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7
< 151.0.2-r0+ 25 more
- (no CPE)range: < 151.0.2-r0
- (no CPE)range: < 151.0.2-r0
- (no CPE)range: < 140.9.1-1.el9_7.alma.1
- (no CPE)range: < 140.9.1-1.el9_7.alma.1
- (no CPE)range: < 140.9.1-1.el9_7.alma.1
- (no CPE)range: < 140.9.1-1.1
- (no CPE)range: < 140.9.1-160000.1.1
- (no CPE)range: < 149.0.2-1.1
- (no CPE)range: < 140.9.1-1.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-112.307.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-160000.1.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-150200.152.228.1
- (no CPE)range: < 140.9.1-160000.1.1
- (no CPE)range: < 140.9.1-112.307.1
- (no CPE)range: < 140.9.1-150200.8.266.1
- (no CPE)range: < 140.9.1-150200.8.266.1
Patches
Vulnerability mechanics
References
5- www.mozilla.org/security/advisories/mfsa2026-25/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2026-27/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
- www.mozilla.org/security/advisories/mfsa2026-28/nvd
- www.mozilla.org/security/advisories/mfsa2026-29/nvd
News mentions
0No linked articles in our index yet.