CVE-2020-15685

high
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
8.0

Description

During the plaintext phase of the STARTTLS connection setup, protocol commands could have been injected and evaluated within the encrypted session. This vulnerability affects Thunderbird < 78.7.

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-2020-15685

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-15685.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202102-2

OS impact

OSVersionStatusFixed in
arch archfixed78.7.0-1
suse slesaffected
debian debianbookwormfixed1:78.7.0-1
debian debianbullseyefixed1:78.7.0-1
debian debianforkyfixed1:78.7.0-1
debian debiansidfixed1:78.7.0-1
debian debiantrixiefixed1:78.7.0-1

References

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