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CVE-2024-20474

MEDIUMCVSS 6.5/10EPSS 0.57%

Last modified

CVE-2024-20474 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability
0.57%

43.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAnyconnect Secure Mobility Client4.9.00086
CiscoAnyconnect Secure Mobility Client4.9.01095
CiscoAnyconnect Secure Mobility Client4.9.02028
CiscoAnyconnect Secure Mobility Client4.9.03047
CiscoAnyconnect Secure Mobility Client4.9.03049
CiscoAnyconnect Secure Mobility Client4.9.04043
CiscoAnyconnect Secure Mobility Client4.9.04053
CiscoAnyconnect Secure Mobility Client4.9.05042
CiscoAnyconnect Secure Mobility Client4.9.06037
CiscoSecure Client4.10.00093
CiscoSecure Client4.10.01075
CiscoSecure Client4.10.02086
CiscoSecure Client4.10.03104
CiscoSecure Client4.10.04065
CiscoSecure Client4.10.04071
CiscoSecure Client4.10.05085
CiscoSecure Client4.10.05095
CiscoSecure Client4.10.05111
CiscoSecure Client4.10.06079
CiscoSecure Client4.10.06090
CiscoSecure Client4.10.07061
CiscoSecure Client4.10.07062
CiscoSecure Client4.10.07073
CiscoSecure Client4.10.08025
CiscoSecure Client4.10.08029
CiscoSecure Client5.0.00238
CiscoSecure Client5.0.00529
CiscoSecure Client5.0.00556
CiscoSecure Client5.0.01242
CiscoSecure Client5.0.02075
CiscoSecure Client5.0.03072
CiscoSecure Client5.0.03076
CiscoSecure Client5.0.04032
CiscoSecure Client5.0.05040
CiscoSecure Client5.1.0.136
CiscoSecure Client5.1.1.42
CiscoSecure Client5.1.2.42
CiscoSecure Client5.1.3.62

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20474?
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.
How severe is CVE-2024-20474?
CVE-2024-20474 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20474?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-20474?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST