Firetruck

CVE-2020-3569

KEV
Updated Oct 21, 2025 · PUBLISHED
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Description

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.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Cisco IOS XR SoftwareCisco / Cisco IOS XR Softwaren/aaffected