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.
Metrics
CVSS 3.1 10.0/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | Pulse Connect Secure | PCS 9.0R3 or above, PCS 9.1R1 and above |
References
- https://blog.pulsesecure.net/pulse-connect-secure-security-update/Vendor Advisory
- https://kb.cert.org/vuls/id/213092Third Party Advisory, US Government Resource
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/Broken Link, Vendor Advisory
- https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.htmlThird Party Advisory
- https://blog.pulsesecure.net/pulse-connect-secure-security-update/Vendor Advisory
- https://kb.cert.org/vuls/id/213092Third Party Advisory, US Government Resource
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/Broken Link, Vendor Advisory
- https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.htmlThird Party Advisory
- https://www.kb.cert.org/vuls/id/213092US Government Resource
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22893US Government Resource
Timeline
- Published
- Apr 23, 2021
- Last modified
- Aug 12, 2026
- Added to CISA KEV
- Nov 3, 2021
- NVD status
- Analyzed