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CVE-2025-6435

—
CVSS 3.1
8.1 high
EPSS
<1%p34
Published
()
Modified
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.

Vendors
mozilla
Products
firefox, thunderbird
Weakness
CWE-434
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

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