Connect Secure, Policy Secure and ZTA
CVE-2021-22893: Pulse Connect Secure Use-After-Free
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Pulse Connect Secure PCS 9.0R3 or above, PCS 9 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Exploitation
CISA lists this CVE as exploited in the wild since 3 Nov 2021, including in ransomware campaigns.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.