CVE-2021-22893
Ivanti Pulse Connect Secure Use-After-Free Vulnerability
- Published
- Apr 23, 2021
- Updated
- Aug 12, 2026
- Assigning CNA
- hackerone
- Evidence observed
- Nov 3, 2021
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 98.8%
- Model date
- Oct 18, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the Pulse Connect Secure gateway. This vulnerability has been exploited in the wild.
Sources
- CVE-2021-22893Exploit
Pulse Connect Secure RCE Vulnerability (CVE-2021-22893)
- CVE-2021-22893Exploit
Proof On Concept — Pulse Secure CVE-2021-22893
Responsible use
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