CVE-2025-5456

Name: CVE-2025-5456
Creator: NVD / NIST
Published: 2025-08-12T15:15:30.793+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2025-5456 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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 trigger a denial of service. CWE-125. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

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 trigger a denial of service. CWE-125

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.03%

59.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions	Update
Ivanti	Connect Secure	< 22.7	—
Ivanti	Connect Secure	22.7	—
Ivanti	Policy Secure	< 22.7	—
Ivanti	Policy Secure	22.7	—
Ivanti	Zero Trust Access Gateway	22.8	R2.2
Ivanti	Neurons For Secure Access	< 22.8	—
Ivanti	Neurons For Secure Access	22.8	R1

References

https://forums.ivanti.com/s/article/August-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-Multiple-CVEs?language=en_USVendor Advisory

Timeline

Published: Aug 12, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-5456?

How severe is CVE-2025-5456?

CVE-2025-5456 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2025-5456?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-5456?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST