Microsoft Windows Privilege Escalation Vulnerability (CVE-2019-0543)
Severity: high · Patch status: patched · Since 2022-03-15 · CVE-2019-0543
A privilege escalation vulnerability exists when Windows improperly handles authentication requests. An attacker who successfully exploited this vulnerability could run processes in an elevated context. CISA added CVE-2019-0543 to its Known Exploited Vulnerabilities catalog on Mar 15, 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 Apr 5, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
