Use After Free in Mozilla Firefox

CVE-2025-14860

Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 146.0.1.

Vulnerability class: Use-After-Free

EPSS: 0.003 (19.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mozilla Firefox — versions 146.0.1

Weakness classification (CWE)

CWE-416 — Use After Free

References

security@mozilla.org (Permissions Required)
security@mozilla.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-14860?: CVE-2025-14860 is a critical-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 9.8/10. Published 2025-12-18.
How severe is CVE-2025-14860?: Critical severity. CVSS v3 base score is 9.8 out of 10.