CVE-2022-3166

MicroLogix 1100 & 1400 Product Web Server Application Vulnerable to Denial-Of-Service Condition Attack

HIGH
7.5
CVSS Score
Published: December 16, 2022 at 07:59 PM UTC
Updated: June 17, 2026 at 04:58 AM UTC
6 products affected across 1 vendorMicrologix 1100 FirmwareMicrologix 1400 FirmwareAllen-Bradley MicroLogix 1400

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

Rockwell Automation was made aware that the webservers of the Micrologix 1100 and 1400 controllers contain a vulnerability that may lead to a denial-of-service condition. The security vulnerability could be exploited by an attacker with network access to the affected systems by sending TCP packets to webserver and closing it abruptly which would cause a denial-of-service condition for the web server application on the device

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
rockwellautomation-micrologix-1100 (same device)
All versions
rockwellautomation-micrologix-1400 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHRockwell
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-924

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