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 re…

published 2025-07-08 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-20512

cvss: 4.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits: 0; none known

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.

Patch / fix

fixed in 2

Ivanti Connect Secure 22.7R2.8
Ivanti Policy Secure 22.7R1.5

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 16 mo ago (2025-07-08)

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected products

Ivanti Connect Secure
Ivanti Policy Secure

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-787 Out-of-bounds Write

Technology feeds

Ivanti rss critical rss

References

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

Sources

CVE List CVE-2025-5451
NVD CVE-2025-5451

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary