High severity8.8NVD Advisory· Published Aug 6, 2024· Updated Jun 17, 2026
CVE-2024-7521
CVE-2024-7521
Description
Incomplete WebAssembly exception handing could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
60cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <129.0
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*range: <115.14.0
- cpe:2.3:a:mozilla:firefox_esr:128.0:*:*:*:*:*:*:*
- (no CPE)range: <129
- (no CPE)range: unspecified
- (no CPE)range: unspecified
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <115.14.0
- cpe:2.3:a:mozilla:thunderbird:128.0.1:*:*:*:*:*:*:*
- (no CPE)range: <128.1, <115.14
- (no CPE)range: unspecified
- osv-coords50 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox-branding-SLE&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/MozillaFirefox-branding-SLE&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg: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%20Module%20for%20Desktop%20Applications%2015%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP6pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-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%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg: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%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP5pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP6pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP5pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP6pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6
< 129.0.2-r0+ 49 more
- (no CPE)range: < 129.0.2-r0
- (no CPE)range: < 128.1.0-r0
- (no CPE)range: < 129.0.2-r0
- (no CPE)range: < 115.14.0-2.el9_4.alma.1
- (no CPE)range: < 115.14.0-2.el9_4.alma.1
- (no CPE)range: < 115.14.0-1.el9_4.alma.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 129.0-1.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 115.14.0-150200.8.174.1
- (no CPE)range: < 115.14.0-150200.8.174.1
- (no CPE)range: < 115.14.0-1.1
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-112.221.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-112.221.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-150200.152.146.1
- (no CPE)range: < 128.1.0-112.221.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-35.15.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-35.15.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 128-150200.9.16.1
- (no CPE)range: < 115.14.0-150200.8.174.1
- (no CPE)range: < 115.14.0-150200.8.174.1
- (no CPE)range: < 115.14.0-150200.8.174.1
- (no CPE)range: < 115.14.0-150200.8.174.1
Patches
Vulnerability mechanics
References
6- www.mozilla.org/security/advisories/mfsa2024-33/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2024-34/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2024-35/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2024-37/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2024-38/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
News mentions
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