What is CVE-2021-22894?

CVE-2021-22894 is a high-severity vulnerability in Ivanti Connect_secure, classified under Code Injection. CVSS score: 8.8/10. Published 2021-05-27.

How severe is CVE-2021-22894?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-22894 known to be exploited?

Yes. CVE-2021-22894 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

RCE in Ivanti Connect_secure

CVE-2021-22894

A buffer overflow vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to execute arbitrary code as the root user via maliciously crafted meeting room.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.413 (98.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ivanti Connect_secure — versions 9.0, 9.1
N/a Pulse Connect Secure — versions Fixed version 9.1R11.4

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. 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: 2022-05-03.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

support@hackerone.com (x_refsource_MISC, Broken Link, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2021-22894?: CVE-2021-22894 is a high-severity vulnerability in Ivanti Connect_secure, classified under Code Injection. CVSS score: 8.8/10. Published 2021-05-27.
How severe is CVE-2021-22894?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-22894 known to be exploited?: Yes. CVE-2021-22894 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.