What is CVE-2025-5451?

CVE-2025-5451 is a medium-severity vulnerability in Ivanti Connect Secure, classified under Stack-based Buffer Overflow. CVSS score: 4.9/10. Published 2025-07-08.

How severe is CVE-2025-5451?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Buffer overflow in Ivanti Connect Secure

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.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (46.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ivanti Connect Secure — versions 22.7R2.8
Ivanti Connect_secure — versions 22.7
Ivanti Policy Secure — versions 22.7R1.5
Ivanti Policy_secure — versions 22.7

Weakness classification (CWE)

References

3c1d8aa1-5a33-4ea4-8992-aadd6440af75 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-5451?: CVE-2025-5451 is a medium-severity vulnerability in Ivanti Connect Secure, classified under Stack-based Buffer Overflow. CVSS score: 4.9/10. Published 2025-07-08.
How severe is CVE-2025-5451?: Medium severity. CVSS v3 base score is 4.9 out of 10.