What is CVE-2024-2613?

CVE-2024-2613 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.5/10. Published 2024-03-19.

How severe is CVE-2024-2613?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2024-2613 known to be exploited?

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

Vulnerability in Mozilla Firefox

CVE-2024-2613

Data was not properly sanitized when decoding a QUIC ACK frame; this could have led to unrestricted memory consumption and a crash. This vulnerability affects Firefox < 124.

Published 2024-03-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (40.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-1021 — Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

Public proof-of-concept exploits

References

bugzilla.mozilla.org/show_bug.cgi (Patch, Issue Tracking)
www.mozilla.org/security/advisories/mfsa2024-12/ (Vendor Advisory)

Frequently asked questions

What is CVE-2024-2613?: CVE-2024-2613 is a high-severity vulnerability in Mozilla Firefox, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 7.5/10. Published 2024-03-19.
How severe is CVE-2024-2613?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-2613 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.