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Cisco XE: CVE-2020-3512: Cisco IOS and IOS XE Software PROFINET Link Layer Discovery Protocol Denial of Service Vulnerability

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Cisco XE: CVE-2020-3512: Cisco IOS and IOS XE Software PROFINET Link Layer Discovery Protocol Denial of Service Vulnerability

Severity
6
CVSS
(AV:A/AC:M/Au:N/C:N/I:N/A:C)
Published
09/25/2020
Created
09/26/2020
Added
09/25/2020
Modified
12/23/2022

Description

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 device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of LLDP messages in the PROFINET LLDP message handler. An attacker could exploit this vulnerability by sending a malicious LLDP message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

Solution(s)

  • cisco-xe-upgrade-latest

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