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Critical severity · published Apr 4, 2024
CVE-2024-21894
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…
9.8
CVSS
19%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)19.0% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CS
Connect Secure · Ivanti
9.1; 9.1; 9.1; 9.1; 9.1; 9.1; +22 more · source: NVD
PS
Policy Secure · Ivanti
9.0; 9.0; 9.0; 9.0; 9.0; 9.0; +26 more · source: NVD
Affected product
CS
Connect Secure
Ivanti
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-21894
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-21894
Vendor Advisory
https://forums.ivanti.com/s/article/SA-CVE-2024-21894-Heap-Overflow-CVE-2024-22052-Null-Pointer-Dereference-CVE-2024-22053-Heap-Overflow-and-CVE-2024-22023-XML-entity-expansion-or-XXE-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US
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