CVE-2024-21894: A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows…
- Is it exploited?
Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .
VulnCheck KEV lists it since . It cites 2 public reports, the first from .
- How likely is exploitation in the next 30 days?
- 19%
EPSS score, percentile 97.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 8.2 High
CVSS v3.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- from 22.1R6.2 to before 22.1R6.2
- from 22.2R4.2 to before 22.2R4.2
- from 22.3R1.2 to before 22.3R1.2
- from 22.4R1.2 to before 22.4R1.2
- from 22.4R2.4 to before 22.4R2.4
- from 22.5R1.3 to before 22.5R1.3
and 11 more in the table below
Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
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. In certain conditions this may lead to execution of arbitrary code
Source: CVE List, as of . About the data.
What to do
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (2 products)
| Status | Versions |
|---|---|
| Affected | from 22.1R6.2 to before 22.1R6.2 |
| Affected | from 22.2R4.2 to before 22.2R4.2 |
| Affected | from 22.3R1.2 to before 22.3R1.2 |
| Affected | from 22.4R1.2 to before 22.4R1.2 |
| Affected | from 22.4R2.4 to before 22.4R2.4 |
| Affected | from 22.5R1.3 to before 22.5R1.3 |
| Affected | from 22.5R2.4 to before 22.5R2.4 |
| Affected | from 22.6R2.3 to before 22.6R2.3 |
| Affected | from 9.1R14.6 to before 9.1R14.6 |
| Affected | from 9.1R15.4 to before 9.1R15.4 |
| Affected | from 9.1R16.4 to before 9.1R16.4 |
| Affected | from 9.1R17.4 to before 9.1R17.4 |
Versions not listed are: unaffected.
And 1 more version entries in the CVE record.
| Status | Versions |
|---|---|
| Affected | from 22.4R1.2 to before 22.4R1.2 |
| Affected | from 22.6R1.2 to before 22.6R1.2 |
| Affected | from 9.1R16.4 to before 9.1R16.4 |
| Affected | from 9.1R17.4 to before 9.1R17.4 |
| Affected | from 9.1R18.5 to before 9.1R18.5 |
Versions not listed are: unaffected.
Source: CVE List, as of . About the data.
Weakness
CWE-703
- CWE-703: Improper Check or Handling of Exceptional Conditions
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
1
Known exploited Ivanti vulnerabilities
- CVE-2026-104935: Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
- CVE-2026-10520: Ivanti Sentry OS Command Injection Vulnerability
- CVE-2026-6973: Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability
- CVE-2026-1340: Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability
- CVE-2026-1603: Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability