CVE-2021-22893

CVE-2021-22893

Vendor N/A

Product Pulse Connect Secure

Weakness CWE-287 · Improper authentication

KEV Status Known Exploited

Ransomware Used in campaigns

Published April 23, 2021

Last update October 21, 2025

View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

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.

CISA mandated remediation

02CISA Required Action

Apply updates per vendor instructions.

Key dates

03Disclosure timeline

April 23, 2021 CVE published

October 21, 2025 Record updated

External resources

04References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-22893 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/287.html CISA KEV Reference https://www.cisa.gov/news-events/directives/ed-21-03-mitigate-… CISA KEV Reference https://nvd.nist.gov/vuln/detail/CVE-2021-22893

Related vulnerabilities

01Description

02CISA Required Action

03Disclosure timeline

04References

05Related CVE