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CVE-2025-4086
Published: Apr 29, 2025
Modified: Apr 13, 2026
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
Mozilla | Firefox | unaffected 138 - <= * |
Mozilla | Thunderbird | unaffected 138 - <= * |
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