high7.8Known exploitedPublic exploit code
CVE-2024-21338
Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2024-03-04. Federal due date: 2024-03-25.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Microsoft Windows 11 - Kernel Privilege Escalation2025-04-22 · local · windows
- Microsoft Windows 10.0.17763.5458 - Kernel Privilege Escalation2024-04-02 · local · windows
Impact
Windows Kernel Elevation of Privilege Vulnerability
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1809 | before 10.0.17763.5458 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.4046 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.4046 |
| Microsoft | Windows 11 21h2 | before 10.0.22000.2777 |
| Microsoft | Windows 11 22h2 | before 10.0.22621.3155 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.3155 |
| Microsoft | Windows Server 2019 | before 10.0.17763.5458 |
| Microsoft | Windows Server 2022 | before 10.0.20348.2322 |
| Microsoft | Windows Server 2022 23h2 | through 10.0.25398.709 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338
- https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338
- https://packetstorm.news/files/id/190586/
- https://www.exploit-db.com/exploits/52275
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21338