CVE-2018-7846
CRITICALModicon - Trust Boundary Violation
Title source: llmDescription
A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.
Exploits (1)
Scores
CVSS v3
9.8
EPSS
0.4332
EPSS Percentile
97.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Classification
CWE
CWE-668
Status
published
Affected Products (4)
schneider-electric/modicon_m580_firmware
schneider-electric/modicon_m340_firmware
schneider-electric/modicon_quantum_firmware
schneider-electric/modicon_premium_firmware
Timeline
Published
May 22, 2019
Tracked Since
Feb 18, 2026