A vulnerability in the IPv6 protocol handling of the management interfaces of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause an IPv6 flood on the management interface network of an affected device. The vulnerability exists because the software incorrectly forwards IPv6 packets that have an IPv6 node-local multicast group address destination and are received on the management interfaces. An attacker could exploit this vulnerability by connecting to the same network as the management interfaces and injecting IPv6 packets that have an IPv6 node-local multicast group address destination. A successful exploit could allow the attacker to cause an IPv6 flood on the corresponding network. Depending on the number of Cisco IOS XR Software nodes on that network segment, exploitation could cause excessive network traffic, resulting in network degradation or a denial of service (DoS) condition.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-02-04T16:35:25.387755Z

Updated: 2024-09-17T03:17:56.629Z

Reserved: 2020-11-13T00:00:00

Link: CVE-2021-1268

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-04T17:15:14.967

Modified: 2023-11-07T03:27:49.537

Link: CVE-2021-1268

cve-icon Redhat

No data.