CVE-2021-22893

10.0 CRITICAL CISA KEV - Actively Exploited
Published: April 23, 2021 Modified: October 30, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://blog.pulsesecure.net/pulse-connect-secure-security-update/
Source: support@hackerone.com
Vendor Advisory
https://kb.cert.org/vuls/id/213092
Source: support@hackerone.com
Third Party Advisory US Government Resource
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/
Source: support@hackerone.com
Broken Link Vendor Advisory
https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html
Source: support@hackerone.com
Third Party Advisory
https://blog.pulsesecure.net/pulse-connect-secure-security-update/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://kb.cert.org/vuls/id/213092
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory US Government Resource
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Vendor Advisory
https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.kb.cert.org/vuls/id/213092
Source: af854a3a-2127-422b-91ae-364da2661108
US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22893
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
10.0 / 10.0
EPSS (Exploit Probability)
93.4%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-05-03

Weaknesses (CWE)

CWE-287 CWE-416

Affected Vendors

ivanti

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