Microsoft Win32k Privilege Escalation Vulnerability (CVE-2018-8453)
Severity: high · Patch status: patched · Since 2022-01-21 · CVE-2018-8453
Microsoft Windows Win32k contains a vulnerability that allows an attacker to escalate privileges. CISA added CVE-2018-8453 to its Known Exploited Vulnerabilities catalog on Jan 21, 2022, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Jul 21, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
