AUGUST 4, 2026
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Case File

CVE-2025-4086

MEDIUM · CVSS 6.5 EPSS 0.28%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-04-29 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. It affects Android, Firefox.

CVE
CVE-2025-4086
Severity
MEDIUM
CVSS
6.5
EPSS
0.28%
Android Firefox

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)