Cyber Resilience

CVE-2025-5456

High

Published: 12 August 2025

Published
12 August 2025
Modified
23 September 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0097 77.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-5456 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Ivanti Connect Secure. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 22.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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-2025) allows a remote unauthenticated attacker to…

more

trigger a denial of service. CWE-125

CWE(s)
CWE-125

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

ivanti
connect secure
22.7 · ≤ 22.7
ivanti
policy secure
22.7 · ≤ 22.7
ivanti
zero trust access gateway
22.8
ivanti
neurons for secure access
22.8 · ≤ 22.8

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References