CVE-2021-29950

medium
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
5.5

Description

Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird < 78.8.1.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29950

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-29950.html

OS impact

OSVersionStatusFixed in
arch archfixed78.8.1-1
suse slesaffected
debian debianbookwormfixed1:78.9.0-1
debian debianbullseyefixed1:78.9.0-1
debian debianforkyfixed1:78.9.0-1
debian debiansidfixed1:78.9.0-1
debian debiantrixiefixed1:78.9.0-1

References

Verify integrity in audit chain (admin only). AS-IS.