High severity8.8NVD Advisory· Published Apr 29, 2025· Updated Apr 13, 2026
CVE-2025-2817
CVE-2025-2817
Description
Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. 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
48cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*+ 3 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*range: <138.0
- cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*range: <115.23.0
- (no CPE)
- (no CPE)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <128.10.0
- (no CPE)
- osv-coords42 versionspkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:deb/ubuntu/firefox@136.0+build3-0ubuntu0.20.04.1?arch=source&distro=focalpkg:deb/ubuntu/mozjs102@102.15.1-0ubuntu0.22.04.1?arch=source&distro=jammypkg:deb/ubuntu/mozjs102@102.15.1-3ubuntu2?arch=source&distro=noblepkg:deb/ubuntu/mozjs115@115.10.0-1?arch=source&distro=noblepkg:deb/ubuntu/mozjs115@115.16.0-1?arch=source&distro=oracularpkg:deb/ubuntu/mozjs115@115.21.0-1?arch=source&distro=pluckypkg:deb/ubuntu/mozjs38@38.8.0~repack1-0ubuntu4?arch=source&distro=esm-apps/bionicpkg:deb/ubuntu/mozjs52@52.9.1-0ubuntu0.18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/mozjs52@52.9.1-1ubuntu3?arch=source&distro=focalpkg:deb/ubuntu/mozjs68@68.6.0-1ubuntu1?arch=source&distro=focalpkg:deb/ubuntu/mozjs78@78.15.0-4ubuntu1?arch=source&distro=jammypkg:deb/ubuntu/mozjs91@91.10.0-0ubuntu1?arch=source&distro=jammypkg:deb/ubuntu/thunderbird@1:115.18.0+build1-0ubuntu0.20.04.1?arch=source&distro=focalpkg:deb/ubuntu/thunderbird@1:115.18.0+build1-0ubuntu0.22.04.1?arch=source&distro=jammypkg: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/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
< 128.10-r0+ 41 more
- (no CPE)range: < 128.10-r0
- (no CPE)range: < 115.23-r0
- (no CPE)range: < 128.10-r0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (no CPE)range: >= 0
- (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: < 128.10.0-1.1
- (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: < 128.10.0-112.255.1
- (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: < 128.10.0-112.255.1
- (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/msg00022.htmlnvd
News mentions
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