Bug 2374557 (CVE-2025-6435)

Summary: CVE-2025-6435 firefox: Save as in Devtools could download files without sanitizing the extension
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: gotiwari, jhorak, mvyas, tpopela
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: 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 <code>.download</code> file extension. This could have led to the user inadvertently running a malicious executable.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-06-24 13:01:18 UTC
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.