Microsoft Win32k Privilege Escalation Vulnerability (CVE-2019-1458)
Severity: high · Patch status: patched · Since 2022-01-10 · CVE-2019-1458
A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k EoP. CISA added CVE-2019-1458 to its Known Exploited Vulnerabilities catalog on Jan 10, 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 10, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
