A heap-based buffer overflow in IPsec of Ivanti Connect Secure before version 22.7R2.3 allows a remote unauthenticated attacker to cause a…

published 2024-12-11 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-36999

cvss: 7.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.8%; EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits: 0; none known

A heap-based buffer overflow in IPsec of Ivanti Connect Secure before version 22.7R2.3 allows a remote unauthenticated attacker to cause a denial of service.

Patch / fix

fixed in 1

ivanti connect_secure 22.7r2.3

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 22 mo ago (2024-12-12)

Exploit prediction

1.81% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Ivanti Connect Secure

Classification

Weakness

CWE-787 Out-of-bounds Write

Technology feeds

Ivanti rss critical rss

References

forums.ivanti.com /s/article/December-2024-Security-Advisory-Ivanti-Connect-Secure-ICS-and-Ivanti-Policy-Secure-IPS-Multiple-CVE
vendor-advisory

Sources

CVE List CVE-2024-37377
NVD CVE-2024-37377

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary