CVE-2021-34714

CVE-2021-34714 affects Cisco FXOS, IOS, IOS XE/XR, and NX-OS UDLD implementations. The root cause is improper input validation of UDLD packets, enabling an unauthenticated, adjacent attacker to trigger a device reload and DoS; on IOS XR the impact is limited to reloading the UDLD process. The vul...