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CVE-2021-22893: Ivanti Pulse Connect Secure Use-After-Free Vulnerability
Ivanti Pulse Connect Secure · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
47.17%EPSS exploit probability (30 days) 98.8th percentile
10 CRITICALCVSS 3.1
Knownknown ransomware use
194days from NVD publication to KEV
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.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-287 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVD published | 2021-04-23 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2021-22893.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.