What is CVE-2024-4771?

CVE-2024-4771 is a high-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 8.6/10. Published 2024-05-14.

How severe is CVE-2024-4771?

High severity. CVSS v3 base score is 8.6 out of 10.

Use After Free in Mozilla Firefox

CVE-2024-4771

A memory allocation check was missing which would lead to a use-after-free if the allocation failed. This could have triggered a crash or potentially be leveraged to achieve code execution. This vulnerability affects Firefox < 126.

Vulnerability class: Use-After-Free

EPSS: 0.005 (40.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-416 — Use After Free

References

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

Frequently asked questions

What is CVE-2024-4771?: CVE-2024-4771 is a high-severity vulnerability in Mozilla Firefox, classified under Use After Free. CVSS score: 8.6/10. Published 2024-05-14.
How severe is CVE-2024-4771?: High severity. CVSS v3 base score is 8.6 out of 10.