What is CVE-2024-21326?

CVE-2024-21326 is a critical-severity vulnerability in Microsoft Edge (Chromium-based), classified under Use After Free. CVSS score: 9.6/10. Published 2024-01-26.

How severe is CVE-2024-21326?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Is CVE-2024-21326 known to be exploited?

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

Use After Free in Microsoft Edge (Chromium-based)

CVE-2024-21326

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Vulnerability class: Use-After-Free

EPSS: 0.008 (73.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/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

Public proof-of-concept exploits

NaInSec/CVE-LIST

References

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability (vendor-advisory)

Frequently asked questions

What is CVE-2024-21326?: CVE-2024-21326 is a critical-severity vulnerability in Microsoft Edge (Chromium-based), classified under Use After Free. CVSS score: 9.6/10. Published 2024-01-26.
How severe is CVE-2024-21326?: Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2024-21326 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.