CVE-2022-21912: DirectX Graphics Kernel Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 7.8)

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2022-Jan

Released

2022-01-11

EPSS Score

2.61% (percentile: 85.6%)

FAQ

How could an attacker exploit this vulnerability? An authenticated attacker could take advantage of a vulnerability in dxgkrnl.sys to execute an arbitrary pointer dereference in kernel mode. According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability? Any authenticated user could trigger this vulnerability. It does not require admin or other elevated privileges.

Affected Products (17)

Windows

• Windows 10 Version 1809 for 32-bit Systems
• Windows 10 Version 1809 for x64-based Systems
• Windows 10 Version 1809 for ARM64-based Systems
• Windows Server 2019
• Windows Server 2019 (Server Core installation)
• Windows 10 Version 1909 for 32-bit Systems
• Windows 10 Version 1909 for x64-based Systems
• Windows 10 Version 1909 for ARM64-based Systems
• Windows 10 Version 21H1 for x64-based Systems
• Windows 10 Version 21H1 for ARM64-based Systems
• Windows 10 Version 21H1 for 32-bit Systems
• Windows 10 Version 20H2 for 32-bit Systems
• Windows 10 Version 20H2 for ARM64-based Systems
• Windows Server, version 20H2 (Server Core Installation)
• Windows 10 Version 21H2 for 32-bit Systems
• Windows 10 Version 21H2 for ARM64-based Systems
• Windows 10 Version 21H2 for x64-based Systems

Security Updates (3)

• 5009557
• 5009545
• 5009543

Acknowledgments

HongZhenhao of Ant Group Light-Year Security Lab

Revision History

• 2022-01-11: Information published.