Medium severity4.3NVD Advisory· Published Jun 24, 2021· Updated Jun 17, 2026
CVE-2021-29957
CVE-2021-29957
Description
If a MIME encoded email contains an OpenPGP inline signed or encrypted message part, but also contains an additional unprotected part, Thunderbird did not indicate that only parts of the message are protected. This vulnerability affects Thunderbird < 78.10.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7<78.10.2+ 2 more
- (no CPE)range: <78.10.2
- (no CPE)range: unspecified
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <78.10.2
- osv-coords4 versionspkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP3pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweed
< 78.10.2-8.27.1+ 3 more
- (no CPE)range: < 78.10.2-8.27.1
- (no CPE)range: < 78.10.2-8.27.1
- (no CPE)range: < 78.10.2-8.27.1
- (no CPE)range: < 91.1.1-1.1
Patches
Vulnerability mechanics
References
2- bugzilla.mozilla.org/show_bug.cginvdExploitPatchVendor Advisory
- www.mozilla.org/security/advisories/mfsa2021-22/nvdRelease NotesVendor Advisory
News mentions
0No linked articles in our index yet.