CVE-2022-40733 — MEDIUM (5.0)

Vulnerability Description

An access violation vulnerability exists in the DirectComposition functionality win32kbase.sys driver version 10.0.22000.593 as part of Windows 11 version 22000.593 and version 10.0.20348.643 as part of Windows Server 2022 version 20348.643. A specially-crafted set of syscalls can lead to a reboot. An unprivileged user can run specially-crafted code to trigger Denial Of Service.

CVSS Score

5.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows 11 21H2	10.0.22000.593
Microsoft	Windows Server 2022	10.0.20348.643

Related Weaknesses (CWE)

CWE-476

References

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1515ExploitThird Party Advisory

FAQ

What is CVE-2022-40733?

CVE-2022-40733 is a vulnerability with a CVSS score of 5.0 (MEDIUM). An access violation vulnerability exists in the DirectComposition functionality win32kbase.sys driver version 10.0.22000.593 as part of Windows 11 version 22000.593 and version 10.0.20348.643 as part ...

How severe is CVE-2022-40733?

CVE-2022-40733 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-40733?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 21H2, Microsoft Windows Server 2022.