CVE-2020-3566

Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability

Cisco IOS XR Distance Vector Multicast Routing Protocol (DVMRP) incorrectly handles Internet Group Management Protocol (IGMP) packets. Exploitation could allow an unauthenticated, remote attacker to immediately crash the IGMP process or make it consume available memory and eventually crash. Vendor/Product: Cisco IOS XR. Added to CISA KEV 2021-11-03; required action: Apply updates per vendor instructions.

Category: Vulnerability, Known Exploited

Reference: NVD CVE-2020-3566