🛡️ CVE-2020-15685 on Debian — thunderbird

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Distribution advisory

This page covers CVE-2020-15685 as tracked by Debian, for the package thunderbird. The fix is available in version 1:78.7.0-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

DEBIAN-CVE-2020-15685 is recorded against 1 package.

  • thunderbird (fixed in 1:78.7.0-1)

Timeline and source

Published on 22 December 2022 and last revised on 15 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-12-22
Updated 2026-08-20
Modified 2026-08-15
Fix URL N/A

Affected Packages

Software From version Fixed in
thunderbird — 1:78.7.0-1

Similar Threats

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