Critical severity9.1NVD Advisory· Published Apr 29, 2025· Updated Apr 13, 2026
CVE-2025-4083
CVE-2025-4083
Description
A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
28cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <138.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <115.23
- (no CPE)range: <138, <128.10, <115.23
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*range: <138.0
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*range: <128.10.0
- (no CPE)range: <138, <128.10
- osv-coords22 versionspkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg: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%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/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP6pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6
< 128.10.0-1.el9_5.alma.1+ 21 more
- (no CPE)range: < 128.10.0-1.el9_5.alma.1
- (no CPE)range: < 128.10.0-1.el9_5.alma.1
- (no CPE)range: < 128.10.0-1.el9_5.alma.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 138.0-1.1
- (no CPE)range: < 128.10.0-150200.8.212.1
- (no CPE)range: < 128.10.0-1.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.152.179.1
- (no CPE)range: < 128.10.0-150200.8.212.1
- (no CPE)range: < 128.10.0-150200.8.212.1
Patches
Vulnerability mechanics
References
7- www.mozilla.org/security/advisories/mfsa2025-28/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-29/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-30/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-31/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-32/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdPermissions Required
- lists.debian.org/debian-lts-announce/2025/05/msg00024.htmlnvd
News mentions
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