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CVE-2021-22893

Known Exploited (CISA KEV)CRITICAL
10.0
CVSS Severity Score
EPSS Score34.7440%
EPSS Percentile98.01th
PublishedApr 23, 2021
Last ModifiedDec 18, 2025

Vulnerability Description

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.

Affected Platforms (CPE)

📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.0
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1
📦
Ivanti

Connect Secure

= 9.1

References & Advisories

🔗 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
🔗 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

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