CVE-2021-22893

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    CVE-2021-22893

    Published: 23 Apr 2021Last Modified: 10 Mar 2026

    Summary:

    Details: 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.

    References: https://www.kb.cert.org/vuls/id/213092, , https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22893, https://blog.pulsesecure.net/pulse-connect-secure-security-update/, https://kb.cert.org/vuls/id/213092, https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/, https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-22893 | CVE-DB