Medium severity4.3NVD Advisory· Published Jun 24, 2021· Updated Jun 17, 2026
CVE-2021-23992
CVE-2021-23992
Description
Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent. This vulnerability affects Thunderbird < 78.9.1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4< 78.9.1+ 1 more
- (no CPE)range: < 78.9.1
- (no CPE)range: unspecified
- osv-coords2 versionspkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2
< 78.9.1-lp152.2.38.1+ 1 more
- (no CPE)range: < 78.9.1-lp152.2.38.1
- (no CPE)range: < 78.9.1-8.20.1
Patches
Vulnerability mechanics
References
2- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions RequiredVendor Advisory
- www.mozilla.org/security/advisories/mfsa2021-13/nvdRelease NotesVendor Advisory
News mentions
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