Rockwell Micrologix Privilege escalation and Denial of Service (CVE-2009-3739)

critical Tenable OT Security Plugin ID 500076


The remote OT asset is affected by a vulnerability.


Multiple unspecified vulnerabilities on the Rockwell Automation AB Micrologix 1100 and 1400 controllers allow remote attackers to obtain privileged access or cause a denial of service (halt) via unknown vectors.

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Refer to the vendor advisory.

See Also

Plugin Details

Severity: Critical

ID: 500076

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 12/14/2023

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Medium

Score: 5.2


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2009-3739


Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: 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: 1/19/2010

Vulnerability Publication Date: 1/19/2010

Reference Information

CVE: CVE-2009-3739