Detections
Analytics
CVE-2025-4086
medium
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 affects Firefox < 138 and Thunderbird < 138.
References
https://www.mozilla.org/security/advisories/mfsa2025-31/