Out-of-bounds Read in Ivanti Connect Secure
CVE-2025-5456
A buffer over-read vulnerability in Ivanti Connect Secure before 22.7R2.8 or 22.8R2, Ivanti Policy Secure before 22.7R1.5, Ivanti ZTA Gateway before 2.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2…
Vulnerability class: Buffer Overflow
EPSS: 0.006 (70.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Ivanti Connect Secure — versions 22.7R2.8, 22.8R2
- Ivanti Neurons For Secure — versions 22.8R1.4 (Fix deployed on 02-Aug-2025)
- Ivanti Policy Secure — versions 22.7R1.5
- Ivanti Zta Gateway — versions 2.8R2.3-723
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-5456?
- CVE-2025-5456 is a high-severity vulnerability in Ivanti Connect Secure, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2025-08-12.
- How severe is CVE-2025-5456?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-5456 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.