Untrusted Pointer Dereference in Microsoft products - CVE-2022-41121
Published: December 13, 2022 / Updated: January 2, 2023
Vulnerability identifier: #VU70157
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-41121
CWE-ID: CWE-822
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper input validation within the StretchBlt and PlgBlt graphics primitives. A local user can run a specially crafted program to trigger an untrusted pointer dereference and execute arbitrary code with SYSTEM privileges.
Affected software
Remote Desktop client for Windows Desktop
Microsoft Windows
Windows Server
Microsoft Windows
Windows Server
How to mitigate CVE-2022-41121
Install updates from vendor's website.