Rockwell MicroLogix Denial Of Service (CVE-2012-4690)

high Tenable OT Security Plugin ID 500257


The remote OT asset is affected by a vulnerability.


Rockwell Automation Allen-Bradley MicroLogix controller 1100, 1200, 1400, and 1500; SLC 500 controller platform; and PLC-5 controller platform, when Static status is not enabled, allow remote attackers to cause a denial of service via messages that trigger modification of status bits.

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Refer to the vendor advisory.

See Also

Plugin Details

Severity: High

ID: 500257

Version: 1.6

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 12/14/2023

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2012-4690


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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/h:rockwellautomation:ab_micrologix_controller:1200, cpe:/h:rockwellautomation:ab_micrologix_controller:1500, cpe:/h:rockwellautomation:plc-5_controller:-, cpe:/h:rockwellautomation:slc_500_controller:-, cpe:/h:rockwellautomation:ab_micrologix_controller:1400, cpe:/h:rockwellautomation:ab_micrologix_controller:1100

Required KB Items: Tenable.ot/Rockwell

Exploit Ease: No known exploits are available

Patch Publication Date: 12/8/2012

Vulnerability Publication Date: 12/8/2012

Reference Information

CVE: CVE-2012-4690

CWE: 16