var-202001-0494
Vulnerability from variot

A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS–IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS–IS process. An attacker could exploit this vulnerability by sending a crafted SNMP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition in the IS–IS process. Cisco IOS XR is an operating system developed by Cisco for its network equipment. The following products and versions are affected: Cisco IOS XR prior to 6.6.3, prior to 7.0.2, prior to 7.1.1, and prior to 7.2.1

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