CVE-2025-3116

MEDIUM

Schneider Electric Modicon M241/M251 <5.3.12.51 & M258/LMC058 Authenticated DoS via HTTPS

Title source: llm

Description

CWE-20: Improper Input Validation vulnerability exists that could cause Denial of Service when an authenticated malicious user sends special malformed HTTPS request containing improper formatted body data to the controller.

References (1)

Core 1

Core References

Various Sources

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-161-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-161-02.pdf

Scores

CVSS v3 6.5

EPSS 0.0038

EPSS Percentile 29.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-20

Status published

Products (2)

Schneider Electric/Modicon Controllers M241/M251 Versions prior to 5.3.12.51

Schneider Electric/Modicon Controllers M258 / LMC058 All Versions

Published Jun 10, 2025

Tracked Since Feb 18, 2026