November 3, 2021 · Applied Cybernetics Group
CVE-2021-22893 — Ivanti Pulse Connect Secure
known ransomware use
Ivanti Pulse Connect Secure Use-After-Free Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Ivanti
- Product
- Pulse Connect Secure
- EPSS
- 98.7th percentile (score 0.472, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- ATT&CK
- T1003 , T1059 , T1190 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2021-22893
CISA short description
Ivanti Pulse Connect Secure contains a use-after-free vulnerability that allow a remote, unauthenticated attacker to execute code via license services.
Required action
Apply updates per vendor instructions.