A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x 22.x) and Ivanti Policy Secure allows an unauthenticated mal…

published 2024-04-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-19651

cvss: 8.2; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 3.5%; EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits: 0; none known

A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack or in certain conditions read contents from memory.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 2 y ago (2024-04-05)

Exploit prediction

3.53% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	8.2	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
NVD	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected products

Ivanti Connect Secure
Ivanti Policy Secure
ivanti connect_secure
ivanti policy_secure

Classification

Weakness

CWE-703 Improper Check or Handling of Exceptional Conditions
CWE-787 Out-of-bounds Write

Technology feeds

Ivanti rss critical rss

References

forums.ivanti.com /s/article/New-CVE-2024-21894-Heap-Overflow-CVE-2024-22052-Null-Pointer-Dereference-CVE-2024-22053-Heap-Overfl
vendor-advisory

Sources

CVE List CVE-2024-22053
NVD CVE-2024-22053

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