CVSS 3.1 Score 8.6 of 10 (high)


Published Mar 27, 2024
Updated: Mar 28, 2024


CVE-2024-20308 is a vulnerability in the IKEv1 fragmentation code of Cisco IOS Software and Cisco IOS XE Software. It affects multiple products. The vulnerability allows an unauthenticated, remote attacker to cause a heap underflow, leading to the affected device reloading. The vulnerability can be exploited by sending crafted UDP packets to the affected system. This could result in a denial of service (DoS) condition for the organization. The CVSS score for this vulnerability is 8.6, indicating a high severity level. Remediation for this vulnerability includes updating the affected software to a fixed version provided by Cisco.

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