Auth bypass in Ivanti Connect_secure
CVE-2021-22893
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…
Vulnerability class: Broken Authentication
EPSS: 0.472 (98.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Ivanti Connect_secure — versions 9.0, 9.1
- N/a Pulse Connect Secure — versions PCS 9.0R3 or above, PCS 9.1R1 and above
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- support@hackerone.com (x_refsource_MISC, Broken Link, Vendor Advisory)
- support@hackerone.com (x_refsource_MISC, Vendor Advisory)
- support@hackerone.com (Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (US Government Resource, Third Party Advisory, x_refsource_MISC)
- af854a3a-2127-422b-91ae-364da2661108 (US Government Resource)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2021-22893?
- CVE-2021-22893 is a critical-severity vulnerability in Ivanti Connect_secure, classified under Improper Authentication. CVSS score: 10.0/10. Published 2021-04-23.
- How severe is CVE-2021-22893?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2021-22893 known to be exploited?
- Yes. CVE-2021-22893 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 29 public proof-of-concept repositories are indexed.