Medium severity6.5NVD Advisory· Published May 14, 2025· Updated Jun 17, 2026
CVE-2025-3932
CVE-2025-3932
Description
It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird automatically accessed the link. The configuration to block remote content did not prevent that. Thunderbird has been fixed to no longer allow access to web pages listed in the X-Mozilla-External-Attachment-URL header of an email. This vulnerability was fixed in Thunderbird 128.10.1 and Thunderbird 138.0.1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <128.10.1
- (no CPE)range: <128.10.1, <138.0.1
- osv-coords7 versionspkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg: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%20SP7
< 128.10.1-1.el10_0.alma.1+ 6 more
- (no CPE)range: < 128.10.1-1.el10_0.alma.1
- (no CPE)range: < 128.10.1-150200.8.215.1
- (no CPE)range: < 128.10.1-1.1
- (no CPE)range: < 128.10.1-150200.8.215.1
- (no CPE)range: < 128.10.1-150200.8.215.1
- (no CPE)range: < 128.10.1-150200.8.215.1
- (no CPE)range: < 128.10.1-150200.8.215.1
Patches
Vulnerability mechanics
References
4- www.mozilla.org/security/advisories/mfsa2025-34/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-35/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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