CVE-2020-7540

CRITICAL

Modicon M340 BMXP341000 Firmware < 3.30 - Unauthenticated Command Execution via HTTP Requests

Title source: llm

Description

A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340, Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions), that could cause unauthenticated command execution in the controller when sending special HTTP requests.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_confirm

https://www.se.com/ww/en/download/document/SEVD-2020-343-04/

Scores

CVSS v3 9.8

EPSS 0.0031

EPSS Percentile 54.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-306

Status published

Products (23)

schneider-electric/140cpu65150_firmware < 6.1

schneider-electric/140cpu65160_firmware < 6.1

schneider-electric/140noc77101_firmware < 1.08

schneider-electric/140noc78000_firmware < 1.74

schneider-electric/140noc78100_firmware < 1.74

schneider-electric/140noe77101_firmware < 7.1

schneider-electric/140noe77111_firmware < 7.1

schneider-electric/bmxnoc0401_firmware < 2.10

schneider-electric/bmxnoe0100_firmware < 3.3

schneider-electric/bmxnoe0110_firmware < 6.5

... and 13 more

Published Dec 11, 2020

Tracked Since Feb 18, 2026