vulnerability
MFSA2025-35 Thunderbird: Security Vulnerabilities fixed in Thunderbird 138.0.1 (CVE-2025-3932)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:C/I:N/A:N) | May 13, 2025 | May 15, 2025 | Apr 29, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:C/I:N/A:N)
Published
May 13, 2025
Added
May 15, 2025
Modified
Apr 29, 2026
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 was fixed in Thunderbird 128.10.1 and Thunderbird 138.0.1.
Solution
mozilla-thunderbird-upgrade-138_0_1
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