CVE-2023-25740

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-02 · updated 2026-06-17
Weakness: CWE-522

Description

After downloading a Windows <code>.scf</code> script from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>*This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110.

Affected products

Mozilla Firefox: before 110.0 — fixed in 110.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 110.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1812354
https://www.mozilla.org/security/advisories/mfsa2023-05/
https://bugzilla.mozilla.org/show_bug.cgi?id=1812354
https://www.mozilla.org/security/advisories/mfsa2023-05/
https://bugzilla.mozilla.org/show_bug.cgi?id=1812354

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