Rockwell Automation RSLinx Classic <= DoS (CVE-2020-13573)

high Nessus Plugin ID 145268


An application running on the remote host is affected by a denial of service vulnerability.


The remote host has a version of RSLinx Classic installed that is prior or equal to It is, therefore, potentially affected by a denial of service vulnerability in the Ethernet/IP server implementation. A remote, unauthenticated attacker could cause the device to crash by sending a specially crafted sequence of packets.

Note that this plugin only runs if 'Report paranoia' is set to 'Paranoid'.


Contact the vendor.

See Also

Plugin Details

Severity: High

ID: 145268

File Name: scada_rslinx_classic_2_57_00_14.nbin

Version: 1.47

Type: local

Agent: windows

Family: SCADA

Published: 1/22/2021

Updated: 6/13/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2020-13573


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:rockwellautomation:rslinx_classic

Required KB Items: Settings/ParanoidReport, installed_sw/Rockwell Automation RSLinx Classic

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/4/2020

Vulnerability Publication Date: 1/7/2021

Reference Information

CVE: CVE-2020-13573

IAVB: 2021-B-0006