What is CVE-2023-25740?

CVE-2023-25740 is a high-severity vulnerability in Mozilla Firefox, classified under Insufficiently Protected Credentials. CVSS score: 8.8/10. Published 2023-06-02.

How severe is CVE-2023-25740?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-25740 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Mozilla Firefox

CVE-2023-25740

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.

EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

security@mozilla.org (Vendor Advisory)
security@mozilla.org (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2023-25740?: CVE-2023-25740 is a high-severity vulnerability in Mozilla Firefox, classified under Insufficiently Protected Credentials. CVSS score: 8.8/10. Published 2023-06-02.
How severe is CVE-2023-25740?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-25740 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.