CVE-2021-22800

HIGH

Modicon M218 Logic Controller <5.1.0.6 - DoS

Title source: llm
STIX 2.1

Description

A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior)

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0044
EPSS Percentile 63.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (1)
schneider-electric/modicon_m218_firmware < 5.1.0.6
Published Feb 11, 2022
Tracked Since Feb 18, 2026