Medium severity6.5NVD Advisory· Published Aug 19, 2025· Updated Apr 13, 2026
CVE-2025-9181
CVE-2025-9181
Description
Uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 142, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
39cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <142.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <128.14.0
- (no CPE)range: <142, <128.14, <140.2
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <142.0
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <128.14.0
- (no CPE)range: <142, <128.14, <140.2
- osv-coords33 versionspkg:apk/chainguard/firefox-esrpkg: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
< 140.2.0-r0+ 32 more
- (no CPE)range: < 140.2.0-r0
- (no CPE)range: < 128.14.0-2.el9_6.alma.1
- (no CPE)range: < 128.14.0-2.el9_6.alma.1
- (no CPE)range: < 128.14.0-3.el9_6.alma.1
- (no CPE)range: < 140.2.0-1.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 142.0.1-1.1
- (no CPE)range: < 140.2.0-150200.8.236.1
- (no CPE)range: < 140.2.0-1.1
- (no CPE)range: < 128.14.0-160000.1.1
- (no CPE)range: < 128.14.0-1.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-112.276.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-150200.152.198.1
- (no CPE)range: < 140.2.0-112.276.1
- (no CPE)range: < 140.2.0-150200.8.236.1
- (no CPE)range: < 140.2.0-150200.8.236.1
- (no CPE)range: < 140.2.0-150200.8.236.1
- (no CPE)range: < 140.2.0-150200.8.236.1
- (no CPE)range: < 128.14.0-160000.1.1
- (no CPE)range: < 128.14.0-160000.1.1
Patches
Vulnerability mechanics
References
9- www.mozilla.org/security/advisories/mfsa2025-64/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-66/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-67/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-70/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-71/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-72/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
- lists.debian.org/debian-lts-announce/2025/08/msg00016.htmlnvd
- lists.debian.org/debian-lts-announce/2025/08/msg00018.htmlnvd
News mentions
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