VULNERABILITY

MFSA2025-35 Thunderbird: Security Vulnerabilities fixed in Thunderbird 138.0.1 (CVE-2025-3932)

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MFSA2025-35 Thunderbird: Security Vulnerabilities fixed in Thunderbird 138.0.1 (CVE-2025-3932)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
05/13/2025
Created
05/16/2025
Added
05/15/2025
Modified
06/06/2025

Description

It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird automatically accessed the link. The configuration to block remote content did not prevent that. Thunderbird has been fixed to no longer allow access to web pages listed in the X-Mozilla-External-Attachment-URL header of an email. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1.

Solution(s)

  • mozilla-thunderbird-upgrade-138_0_1

References

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