CVE-2024-21388

Name: CVE-2024-21388
Creator: NVD / NIST
Published: 2024-01-30T18:15:48.14+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 31.95%

Last modified Jun 17, 2026

CVE-2024-21388 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability. EPSS estimates a 31.95% chance of exploitation in the next 30 days.

Description

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

EPSS Probability

31.95%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Microsoft	Edge Chromium	< 121.0.2277.83

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21388Patch, Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21388Patch, Vendor Advisory

Timeline

Published: Jan 30, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-21388?

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

How severe is CVE-2024-21388?

CVE-2024-21388 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 31.95% probability of exploitation in the next 30 days.

How do I fix CVE-2024-21388?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-21388?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST