#VU59413 Buffer overflow in Windows and Windows Server - CVE-2022-21882
Published: January 11, 2022 / Updated: October 17, 2022
Vulnerability identifier: #VU59413
Vulnerability risk: High
CVSSv4.0: 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/E:A/U:Amber
CVE-ID: CVE-2022-21882
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the Win32k.sys driver. A local user can run a specially crafted program to trigger a buffer overflow and execute arbitrary code on the system with elevated privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install updates from vendor's website.