Access Violation Vulnerability in Windows 11 and Server 2022 DirectComposition
CVE-2022-40733

5MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows
Vendor
CVE Published:
18 December 2024

What is CVE-2022-40733?

CVE-2022-40733 is a critical access violation vulnerability found in the DirectComposition functionality of the win32kbase.sys driver, specifically affecting Windows 11 and Windows Server 2022. When a user executes specially-crafted syscalls, it can cause the system to reboot by triggering a Denial of Service (DoS) condition. Unprivileged users who can exploit this vulnerability may disrupt system operations, emphasizing the importance of timely updates and patches.

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Deploy the Patch

Affected Version(s)

Windows Build 22000.593

References

https://talosintelligence.com/vulnerability_reports/TALOS...

CVSS V3.1

Score:
5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Discovered by Jaewon Min of Cisco Talos.
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