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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.413 (98.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.413 · newest: 0.413 · change: 0.000
Affected products
- Ivanti Connect Secure — versions 9.0, 9.1
- 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 . 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.
Public proof-of-concept exploits
References
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/ (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.