Vulnerability in Microsoft Windows

CVE-2023-4054

When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 102.14, Firefox ESR < 115.1, Thunderbird < 102.14, and Thunderbird < 115.1.

EPSS: 0.002 (12.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

References

Frequently asked questions

What is CVE-2023-4054?
CVE-2023-4054 is a medium-severity vulnerability in Microsoft Windows. CVSS score: 5.5/10. Published 2023-08-01.
How severe is CVE-2023-4054?
Medium severity. CVSS v3 base score is 5.5 out of 10.