Cisco IOS XR MPLS Denial of Service Vulnerability

The NetIO process on Cisco CRS-1 or a 12000 series devices that run Cisco IOS XR with Multiple Multi Protocol Label Switching (MPLS) can restart when switching certain MPLS packets.

A successful attack results in a denial-of-service condition for traffic that is being switched on an affected Modular Services Card (MSC) or line card.

A sustained denial-of-service condition can also arise from repeated attacks.


 

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