CVE-2024-20312

CVSS 3.1 Score 7.4 of 10 (high)

Details

Published Mar 27, 2024
CWE ID 476

Summary

CVE-2024-20312 is a denial-of-service vulnerability affecting the Intermediate System-to-Intermediate System (IS-IS) protocol in Cisco IOS Software and Cisco IOS XE Software. An unauthenticated, adjacent attacker can exploit insufficient input validation in parsing an ingress IS-IS packet. By sending a crafted packet, the attacker may cause the affected device to reload, leading to a denial of service condition. Note that the IS-IS protocol is a routing protocol, and an attacker must be Layer 2-adjacent to the device and have formed an adjacency to exploit this vulnerability.

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