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.
CVSS
No CVSS.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1950056 | Permissions Required |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1961777 | Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-51/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-54/ |
Configurations
History
14 Jul 2025, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| 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 |
|
03 Jul 2025, 16:09
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://www.mozilla.org/security/advisories/mfsa2025-51/ - Vendor Advisory | |
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1961777 - Permissions Required | |
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1950056 - Permissions Required | |
| CPE | cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* | |
| First Time |
Mozilla firefox
Mozilla |
24 Jun 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-06-24 13:15
Updated : 2025-07-14 19:15
NVD link : CVE-2025-6435
Mitre link : CVE-2025-6435
JSON object : View
Products Affected
mozilla
- firefox
CWE
No CWE.