CVE-2024-21338

high Microsoft ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
EPSS Score
59.8%
Exploitation probability in 30 days
Top 1% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: February 13, 2024 (937 days ago)
Last Modified: July 31, 2026
Vendor: Microsoft
Source: MITRE

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2024-03-04
Remediation Due: 2024-03-25 (⚠ 897d overdue)
Ransomware Campaign: Known

Description

Windows Kernel Elevation of Privilege Vulnerability

CWE

CWE-822

Affected Products

Microsoft Windows 10 Version 1809Microsoft Windows Server 2019Microsoft Windows Server 2019 (Server Core installation)Microsoft Windows Server 2022Microsoft Windows 11 version 21H2Microsoft Windows 10 Version 21H2Microsoft Windows 11 version 22H2Microsoft Windows 10 Version 22H2Microsoft Windows 11 version 22H3Microsoft Windows 11 Version 23H2

References

🔗 msrc.microsoft.com