A vulnerability in the Routing Information Protocol (RIP) process of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the RIP process to crash.
The vulnerability is due to insufficient input validations of the packet. An attacker could exploit this vulnerability by sending a crafted RIP version 2 packet. A successful exploit could allow the attacker to cause the RIP process to crash on the affected device.
Cisco has confirmed the vulnerability in a security notice and released software updates.
To exploit this vulnerability, an attacker may require access to trusted, internal networks to send crafted RIP version 2 packets to an affected device. This access requirement could limit the likelihood of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.