Medium severity4.0NVD Advisory· Published Jan 7, 2025· Updated Apr 13, 2026
CVE-2025-0240
CVE-2025-0240
Description
Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
33cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <134.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <128.6.0
- (no CPE)range: <128.6
- (no CPE)range: <134
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <128.6.0
- (no CPE)range: <134
- osv-coords27 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg: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/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%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%20Workstation%20Extension%2015%20SP6
< 134.0-r0+ 26 more
- (no CPE)range: < 134.0-r0
- (no CPE)range: < 128.6.0-r0
- (no CPE)range: < 134.0-r0
- (no CPE)range: < 128.6.0-1.el9_5
- (no CPE)range: < 128.6.0-1.el9_5
- (no CPE)range: < 128.6.0-1.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 134.0-1.1
- (no CPE)range: < 128.6.0-150200.8.197.1
- (no CPE)range: < 128.6.0-1.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-112.243.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-150200.152.167.1
- (no CPE)range: < 128.6.0-112.243.1
- (no CPE)range: < 128.6.0-150200.8.197.1
- (no CPE)range: < 128.6.0-150200.8.197.1
Patches
Vulnerability mechanics
References
6- www.mozilla.org/security/advisories/mfsa2025-01/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-02/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-04/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-05/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
- lists.debian.org/debian-lts-announce/2025/01/msg00004.htmlnvd
News mentions
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