CVE-2024-21338
HIGH severity · CVSS 7.8 · CWE-822 · actively exploited (CISA KEV)
7.8CVSS HIGH ● exploited ⚠ ransomware
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
⚠ Known use in ransomware campaigns. Added to KEV 2024-03-04. US federal agencies must patch by 2024-03-25.
Summary
Windows Kernel Elevation of Privilege Vulnerability
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)79%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Official patch: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338 ↗
Additional information
- NVD record
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338Patch
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338Patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21338
- https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/Advisory
- https://packetstorm.news/files/id/190586/Exploit
- https://www.exploit-db.com/exploits/52275Exploit