CVE-2022-21882highunder attackransomwareCWE-787

CVE-2022-21882: high-severity vulnerability in Microsoft Windows 10 Version 1809

Win32k Elevation of Privilege Vulnerability

Published · Updated

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

100Vexday Risk Score

Patch now. It under exploitation confirmed by CISA and has a working public exploit.

ssvc Actcvss 7epss 59%
from disclosure to weaponsame day
Published on NVDJan 11
1st PoCNov 10
metasploitFeb 9
CISA KEV+24d
Action required by CISAfederal deadline: 2022-02-18

Apply updates per vendor instructions.

In short

A flaw in Windows' display driver interface allows an attacker with local access to run malicious code with system-level privileges. This is dangerous because it can give attackers complete control over your computer.

Technical detail

CWE-787 (Out-of-bounds Write) in Win32k.sys allows local authenticated users to perform privilege escalation through improper memory handling in the graphics subsystem. Exploitation requires local code execution and results in SYSTEM-level access.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Win32k Elevation of Privilege Vulnerability
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.