CVE-2024-21894: Critical severity ivanti pulse connect secure vulnerability

Published Apr 4, 2024
·
Updated

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

Affected Software

60 affected components
Ivanti Connect Secure=9.1-r1
Ivanti Connect Secure=9.1-r10
Ivanti Connect Secure=9.1-r11
Ivanti Connect Secure=9.1-r11.5
Ivanti Connect Secure=9.1-r12
Ivanti Connect Secure=9.1-r13
Ivanti Connect Secure=9.1-r14
Ivanti Connect Secure=9.1-r15
Ivanti Connect Secure=9.1-r16
Ivanti Connect Secure=9.1-r17
Ivanti Connect Secure=9.1-r18
Ivanti Connect Secure=9.1-r2
Ivanti Connect Secure=9.1-r3
Ivanti Connect Secure=9.1-r4
Ivanti Connect Secure=9.1-r4.1
Ivanti Connect Secure=9.1-r4.2
Ivanti Connect Secure=9.1-r4.3
Ivanti Connect Secure=9.1-r5
Ivanti Connect Secure=9.1-r6
Ivanti Connect Secure=9.1-r7
Ivanti Connect Secure=9.1-r8
Ivanti Connect Secure=9.1-r9
Ivanti Connect Secure=22.1
Ivanti Connect Secure=22.2
Ivanti Connect Secure=22.3
Ivanti Connect Secure=22.4
Ivanti Connect Secure=22.5
Ivanti Connect Secure=22.6
Ivanti Policy Secure=9.0
Ivanti Policy Secure=9.0-r1
Ivanti Policy Secure=9.0-r2
Ivanti Policy Secure=9.0-r2.1
Ivanti Policy Secure=9.0-r3
Ivanti Policy Secure=9.0-r3.1
Ivanti Policy Secure=9.0-r4
Ivanti Policy Secure=9.1
Ivanti Policy Secure=9.1-r1
Ivanti Policy Secure=9.1-r10
Ivanti Policy Secure=9.1-r11
Ivanti Policy Secure=9.1-r12
Ivanti Policy Secure=9.1-r13
Ivanti Policy Secure=9.1-r14
Ivanti Policy Secure=9.1-r15
Ivanti Policy Secure=9.1-r16
Ivanti Policy Secure=9.1-r17
Ivanti Policy Secure=9.1-r18
Ivanti Policy Secure=9.1-r2
Ivanti Policy Secure=9.1-r3
Ivanti Policy Secure=9.1-r4
Ivanti Policy Secure=9.1-r5
Ivanti Policy Secure=9.1-r6
Ivanti Policy Secure=9.1-r7
Ivanti Policy Secure=9.1-r8
Ivanti Policy Secure=9.1-r9
Ivanti Policy Secure=22.1
Ivanti Policy Secure=22.2
Ivanti Policy Secure=22.3
Ivanti Policy Secure=22.4
Ivanti Policy Secure=22.5
Ivanti Policy Secure=22.6

Event History

Apr 3, 2024
News Published
via BleepingComputer·05:29 PM
News Published
via BleepingComputer·05:31 PM
Apr 4, 2024
CVE Published
via MITRE·10:16 PM
Data Sourced
via MITRE·10:16 PM
DescriptionSeverity
Apr 5, 2024
News Published
via BleepingComputer·05:40 PM

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2024-21894?

CVE-2024-21894 is classified as a critical severity vulnerability due to its potential for causing a denial of service and possible remote code execution.

2

How do I fix CVE-2024-21894?

To mitigate CVE-2024-21894, ensure that your Ivanti Connect Secure and Ivanti Policy Secure software is updated to the latest patched version released by Ivanti.

3

What versions are affected by CVE-2024-21894?

CVE-2024-21894 affects Ivanti Connect Secure versions 9.x and 22.x, as well as Ivanti Policy Secure versions 9.x.

4

Can CVE-2024-21894 lead to remote code execution?

Yes, under certain conditions, CVE-2024-21894 may lead to remote code execution following a successful denial of service attack.

5

What is the nature of the vulnerability in CVE-2024-21894?

CVE-2024-21894 is a heap overflow vulnerability that allows unauthenticated attackers to send specially crafted requests to the IPSec component.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203