Ivanti Pulse Connect Secure Use-After-Free Vulnerability (CVE-2021-22893)
Severity: critical · Patch status: patched · Since 2021-11-03 · CVE-2021-22893
Ivanti Pulse Connect Secure contains a use-after-free vulnerability that allow a remote, unauthenticated attacker to execute code via license services. CISA added CVE-2021-22893 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, 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 May 3, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
