Microsoft Win32k Privilege Escalation Vulnerability (CVE-2018-8589)
Severity: high · Patch status: patched · Since 2022-05-23 · CVE-2018-8589
A privilege escalation vulnerability exists when Windows improperly handles calls to Win32k.sys. An attacker who successfully exploited this vulnerability could run remote code in the security context of the local system. CISA added CVE-2018-8589 to its Known Exploited Vulnerabilities catalog on May 23, 2022, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Jun 13, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
