What is CVE-2024-21399?

CVE-2024-21399 is a high-severity vulnerability in Microsoft Edge (Chromium-based), classified under Use After Free. CVSS score: 8.3/10. Published 2024-02-02.

How severe is CVE-2024-21399?

High severity. CVSS v3 base score is 8.3 out of 10.

Use After Free in Microsoft Edge (Chromium-based)

CVE-2024-21399

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Vulnerability class: Use-After-Free

EPSS: 0.003 (54.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C.

Affected products

Microsoft Edge (Chromium-based) — versions 1.0.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability (vendor-advisory)

Frequently asked questions

What is CVE-2024-21399?: CVE-2024-21399 is a high-severity vulnerability in Microsoft Edge (Chromium-based), classified under Use After Free. CVSS score: 8.3/10. Published 2024-02-02.
How severe is CVE-2024-21399?: High severity. CVSS v3 base score is 8.3 out of 10.