Improper Certificate Validation Affecting thunderbird package, versions <1:102.10.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18318703
  • published26 Jul 2026
  • disclosed2 Jun 2023

Introduced: 2 Jun 2023

CVE-2023-0547  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Echo:latest thunderbird to version 1:102.10.0-1 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.

OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug. This vulnerability affects Thunderbird < 102.10.

CVSS Base Scores

version 3.1