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

high Nessus Plugin ID 145268
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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: 1.7

Type: local

Agent: windows

Family: SCADA

Published: 1/22/2021

Updated: 7/22/2021

Dependencies: scada_app_rslinx_classic_detect.nbin

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2020-13573


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:rockwellautomation:rslinx_classic

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

Exploit Ease: No known 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