What is CVE-2024-4774?

CVE-2024-4774 is a medium-severity vulnerability in Mozilla Firefox, classified under CWE-758. CVSS score: 6.5/10. Published 2024-05-14.

How severe is CVE-2024-4774?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2024-4774 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-2024-4774

The `ShmemCharMapHashEntry()` code was susceptible to potentially undefined behavior by bypassing the move semantics for one of its data members. This vulnerability affects Firefox < 126.

EPSS: 0.004 (29.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-758

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

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

Frequently asked questions

What is CVE-2024-4774?: CVE-2024-4774 is a medium-severity vulnerability in Mozilla Firefox, classified under CWE-758. CVSS score: 6.5/10. Published 2024-05-14.
How severe is CVE-2024-4774?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2024-4774 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.