Vulnerability identifier: #VU52164
Vulnerability risk: High
Exploitation vector: Local
Exploit availability: No
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within win32k.sys driver in Microsoft Windows. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with elevated privileges.
Note, the vulnerability is being actively exploited in the wild.
Install updates from vendor's website.
Vulnerable software versions
Windows: 10 20H2, 10 1803, 10 1809, 10 1909, 10 2004
Windows Server: 2019, 2019 20H2, 2019 1909, 2019 2004
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.