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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.
Use CWE-287, Ivanti vendor hub and Connect Secure product page to widen CVE-2021-22893 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2025-55145, CVE-2025-55147 and CVE-2025-55142 for nearby disclosures in the same product family. Additional editorial context is available in The Weekly Cybersecurity Brief: February 27th, 2026.