Arbitrary Command Injection Affecting thunderbird package, versions <1:78.7.0-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.85% (54th percentile)

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  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18319147
  • published26 Jul 2026
  • disclosed22 Dec 2022

Introduced: 22 Dec 2022

CVE-2020-15685  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Echo:latest thunderbird to version 1:78.7.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1