CVE-2024-20474: Integer Underflow

Published Oct 23, 2024
·
Updated

A vulnerability in Internet Key Exchange version 2 (IKEv2) processing of Cisco Secure Client Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) of Cisco Secure Client. This vulnerability is due to an integer underflow condition. An attacker could exploit this vulnerability by sending a crafted IKEv2 packet to an affected system. A successful exploit could allow the attacker to cause Cisco Secure Client Software to crash, resulting in a DoS condition on the client software. Note: Cisco Secure Client Software releases 4.10 and earlier were known as Cisco AnyConnect Secure Mobility Client.

Affected Software

38 affected components
Cisco AnyConnect Secure Mobility Client=4.9.00086
Cisco AnyConnect Secure Mobility Client=4.9.01095
Cisco AnyConnect Secure Mobility Client=4.9.02028
Cisco AnyConnect Secure Mobility Client=4.9.03047
Cisco AnyConnect Secure Mobility Client=4.9.03049
Cisco AnyConnect Secure Mobility Client=4.9.04043
Cisco AnyConnect Secure Mobility Client=4.9.04053
Cisco AnyConnect Secure Mobility Client=4.9.05042
Cisco AnyConnect Secure Mobility Client=4.9.06037
Cisco Secure Client=4.10.00093
Cisco Secure Client=4.10.01075
Cisco Secure Client=4.10.02086
Cisco Secure Client=4.10.03104
Cisco Secure Client=4.10.04065
Cisco Secure Client=4.10.04071
Cisco Secure Client=4.10.05085
Cisco Secure Client=4.10.05095
Cisco Secure Client=4.10.05111
Cisco Secure Client=4.10.06079
Cisco Secure Client=4.10.06090
Cisco Secure Client=4.10.07061
Cisco Secure Client=4.10.07062
Cisco Secure Client=4.10.07073
Cisco Secure Client=4.10.08025
Cisco Secure Client=4.10.08029
Cisco Secure Client=5.0.00238
Cisco Secure Client=5.0.00529
Cisco Secure Client=5.0.00556
Cisco Secure Client=5.0.01242
Cisco Secure Client=5.0.02075
Cisco Secure Client=5.0.03072
Cisco Secure Client=5.0.03076
Cisco Secure Client=5.0.04032
Cisco Secure Client=5.0.05040
Cisco Secure Client=5.1.0.136
Cisco Secure Client=5.1.1.42
Cisco Secure Client=5.1.2.42
Cisco Secure Client=5.1.3.62

Event History

Oct 23, 2024
CVE Published
via MITRE·05:49 PM
Data Sourced
via MITRE·05:49 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeakness
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-2024-20474?

CVE-2024-20474 has been rated as critical severity due to its potential to cause a denial of service in Cisco Secure Client Software.

2

How do I fix CVE-2024-20474?

To fix CVE-2024-20474, upgrade Cisco Secure Client to the latest version recommended by Cisco.

3

What versions of Cisco software are affected by CVE-2024-20474?

CVE-2024-20474 affects specific versions of Cisco AnyConnect Secure Mobility Client and Cisco Secure Client software, including various versions listed in the advisory.

4

Can CVE-2024-20474 be exploited remotely?

Yes, CVE-2024-20474 can be exploited by an unauthenticated remote attacker.

5

What does CVE-2024-20474 allow an attacker to do?

CVE-2024-20474 allows an attacker to trigger a denial of service condition in Cisco Secure Client Software.

Company

Resources

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