AUGUST 4, 2026
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Case File

CVE-2025-6435

HIGH · CVSS 8.1 EPSS 0.39%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-06-24 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It affects Firefox.

CVE
CVE-2025-6435
Severity
HIGH
CVSS
8.1
EPSS
0.39%
Firefox

Original NVD Description

If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the `.download` file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability was fixed in Firefox 140 and Thunderbird 140.

Related CVEs

Other vulnerabilities affecting the same vendor(s)