CVE-2024-21338

7.8 HIGH CISA KEV - Actively Exploited

Published: February 13, 2024 Modified: October 28, 2025

View on NVD

Description

Windows Kernel Elevation of Privilege Vulnerability

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338

Source: secure@microsoft.com

Patch Vendor Advisory

https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit Technical Description Third Party Advisory

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338

Source: af854a3a-2127-422b-91ae-364da2661108

Patch Vendor Advisory

https://packetstorm.news/files/id/190586/

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit VDB Entry

https://www.exploit-db.com/exploits/52275

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit VDB Entry

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21338

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

6 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.8 / 10.0

EPSS (Exploit Probability)

77.8%

99th percentile

Exploitation Status

Actively Exploited

Remediation due: 2024-03-25

Weaknesses (CWE)

CWE-822

Affected Vendors

microsoft

Related CVEs