High Risk - Advisory ID: cisco-sa-ios-profinet-dos-65qYG3W5 - CVE ID: CVE-2020-3512 - CVSS Score: 7.4 - Summary: A vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a crash on an Affected Products: - Vulnerable Products: Cisco Industrial Ethernet devices running vulnerable releases of Cisco IOS or IOS XE Software with PROFINET feature enabled (list provided). - Products Confirmed Not Vulnerable: Cisco IOS XR Software, Cisco NX-OS Software。 Workarounds: There are no workarounds that address this vulnerability. Fixed Software: Cisco has released free software updates that address the vulnerability. Source: This vulnerability was found during the resolution of a Cisco TAC support case.