CVE-2025-5451: policy secure Stack Overflow — Fix

Description

A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.8 and Ivanti Policy Secure before version 22.7R1.5 allows a remote authenticated attacker with admin rights to trigger a denial of service.

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CVSS v3.1 Score

4.9

MEDIUM

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

Weakness Type (CWE)

CWE-121 CWE-121

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
ivanti	connect_secure	< 22.7
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	connect_secure	All
ivanti	policy_secure	< 22.7
ivanti	policy_secure	All
ivanti	policy_secure	All
ivanti	policy_secure	All
ivanti	policy_secure	All
ivanti	policy_secure	All
ivanti	policy_secure	All

References

Advisories & Patches

https://forums.ivanti.com/s/article/July-Security-Advisory-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Multiple-CVEs

Frequently Asked Questions

What is CVE-2025-5451? +

A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.8 and Ivanti Policy Secure before version 22.7R1.5 allows a remote authenticated attacker with admin rights to trigger a denial of service. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2025-5451? +

CVE-2025-5451 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-5451? +

CVE-2025-5451 affects products from ivanti, specifically: connect_secure, policy_secure. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-5451? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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