CVE-2024-21338

Known Exploited Public Exploit

Windows Kernel Elevation of Privilege Vulnerability

Description

Windows Kernel Elevation of Privilege Vulnerability

Link	Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338	patch vendor advisory
https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/	exploit technical description third party advisory
https://packetstorm.news/files/id/190586/	exploit vdb entry
https://www.exploit-db.com/exploits/52275	exploit vdb entry

What is the severity of CVE-2024-21338?: CVE-2024-21338 has been scored as a high severity vulnerability.
How to fix CVE-2024-21338?: To fix CVE-2024-21338, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-21338 being actively exploited in the wild?: It is confirmed that CVE-2024-21338 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~81% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-21338?: CVE-2024-21338 affects Microsoft Windows 10 Version 1809, Microsoft Windows 10 Version 1809, Microsoft Windows Server 2019, Microsoft Windows Server 2019 (Server Core installation), Microsoft Windows Server 2022, Microsoft Windows 11 version 21H2, Microsoft Windows 10 Version 21H2, Microsoft Windows 11 version 22H2, Microsoft Windows 10 Version 22H2, Microsoft Windows 11 version 22H3, Microsoft Windows 11 Version 23H2, Microsoft Windows Server 2022, 23H2 Edition (Server Core installation).