CVE-2025-6435 (GCVE-0-2025-6435)
Vulnerability from cvelistv5
Published
2025-06-24 12:28
Modified
2025-07-14 18:26
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • Save as in Devtools could download files without sanitizing the extension
Summary
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 affects Firefox < 140 and Thunderbird < 140.
References
Impacted products
Vendor Product Version
Mozilla Firefox Version: unspecified   < 140
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