Buffer overflow in Ivanti Connect Secure
CVE-2024-21894
A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS…
Vulnerability class: Buffer Overflow
EPSS: 0.190 (97.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ivanti Connect Secure — versions 22.1R6.2, 22.2R4.2, 22.3R1.2
- Ivanti Connect_secure — versions 9.1, 22.1, 22.2
- Ivanti Policy Secure — versions 22.4R1.2, 22.6R1.2, 9.1R16.4
- Ivanti Policy_secure — versions 9.0, 9.1, 22.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-21894?
- CVE-2024-21894 is a critical-severity vulnerability in Ivanti Connect Secure, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2024-04-04.
- How severe is CVE-2024-21894?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-21894 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.