Ivanti Pulse Connect Secure Use-After-Free Vulnerability
What it is
Ivanti Pulse Connect Secure contains a use-after-free vulnerability that allow a remote, unauthenticated attacker to execute code via license services.
Known to be used in ransomware campaigns.Active threat actors have chained this vulnerability into ransomware operations — treat patching as a same-week priority, not a "next maintenance window" task. The coping action is the same one below; the urgency is higher.
Who's affected
Affects anyone using Ivanti VPN (Connect Secure or Pulse) or Ivanti endpoint management. The VPN is what remote workers use to reach internal systems; the endpoint management tool typically has admin reach into every laptop — exploitation in either is high-impact.
What to do
Apply updates per vendor instructions.
CISA action deadline: May 3, 2022. Federal agencies must complete the required action by this date. For private SMBs the deadline is advisory — but treat it as a strong recommendation, especially if you handle regulated data (HIPAA, GLBA, ABA model rules).
If you don't have someone in-house to verify the patch deployed across every endpoint — or you're not sure whether you're affected — that's exactly the kind of triage we do. Book a free 20-minute triage call.
Severity
CVSS base score: 10.0 — CRITICAL
Weakness classifications: CWE-287, CWE-416
Source
Pulled daily from the public cisagov/kev-data mirror (CC0). View the original entry on cisa.gov. CISA KEV is US-Government public-domain data; we add the SMB-vertical framing and the coping action above.
