VULNERABILITY INTELLIGENCE

CVE-2025-4086

CVSS score6.5 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2025-04-29
Last modified2026-09-30
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

A specially crafted filename containing a large number of encoded newline characters could obscure the file's extension when displayed in the download dialog. *This bug only affects Thunderbird for Android. Other versions of Thunderbird are unaffected.*. This vulnerability was fixed in Firefox 138 and Thunderbird 138.

Weakness classification

  • CWE-451: User Interface (UI) Misrepresentation of Critical Information

Primary references