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CVE-2017-12093

MEDIUM
5.3
CVSS Score
Published: April 5, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 01:02 AM UTC
3 products affected across 2 vendorsMicrologix 1400-b FirmwareAllen-Bradley MicroLogix 1400Micrologix 1400-b

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Severity
MEDIUM5.3
Exploit prediction
EPSS 6%

Description

An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. An attacker can send unauthenticated packets to trigger this vulnerability.

Affected

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

Micrologix 1400-b Firmware· Rockwell Automation
95%
v ≤ 21.2
rockwellautomation-micrologix-1400 (same device)
Micrologix 1400-b· Talos
60%
Allen Bradley Micrologix 1400 Series B FRN 21.2, Allen Bradley Micrologix 1400 Series B FRN 21.0, Allen Bradley Micrologix 1400 Series B FRN 15
Allen-Bradley MicroLogix 1400· Rockwell Automationdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0445

CVSS

5.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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