CVE-2022-37301

HIGH

Modicon M340 and M580 Firmware < 3.50/4.01 - Denial of Service via Modbus TCP Memory Access Violation

Title source: llm
STIX 2.1

Description

A CWE-191: Integer Underflow (Wrap or Wraparound) vulnerability exists that could cause a denial of service of the controller due to memory access violations when using the Modbus TCP protocol. Affected products: Modicon M340 CPU (part numbers BMXP34*)(V3.40 and prior), Modicon M580 CPU (part numbers BMEP* and BMEH*)(V3.22 and prior), Legacy Modicon Quantum/Premium(All Versions), Modicon Momentum MDI (171CBU*)(All Versions), Modicon MC80 (BMKC80)(V1.7 and prior)

References (1)

Core 1

Scores

CVSS v3 7.5
EPSS 0.0054
EPSS Percentile 67.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-191
Status published
Products (48)
schneider-electric/modicon_m340_bmx_p34-2010_firmware < 3.50
schneider-electric/modicon_m340_bmx_p34-2030_firmware < 3.50
schneider-electric/modicon_m580_bmeh582040_firmware < 4.01
schneider-electric/modicon_m580_bmeh582040c_firmware < 4.01
schneider-electric/modicon_m580_bmeh582040s_firmware < 4.01
schneider-electric/modicon_m580_bmeh584040_firmware < 4.01
schneider-electric/modicon_m580_bmeh584040c_firmware < 4.01
schneider-electric/modicon_m580_bmeh584040s_firmware < 4.01
schneider-electric/modicon_m580_bmeh586040_firmware < 4.01
schneider-electric/modicon_m580_bmeh586040c_firmware < 4.01
... and 38 more
Published Nov 22, 2022
Tracked Since Feb 18, 2026