20210908 Cisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability

According to its self-reported version, Cisco IOS XR is affected by denial of service vulnerability due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An unauthenticated, adjacent attacker can exploit these by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

CVE-2021-34713

high

Tenable Plugins

high