Intel

AIKIDO-2026-10208

pymodbus is vulnerable to Denial of Service (DoS)

Denial of Service (DoS) Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Feb 21, 2026

28

Low Risk

This Affects:

PYTHONpymodbus
3.4.0 - 3.11.4
Fixed in 3.12.0
Are you affected? Scan for Free

TL;DR

Affected versions of this package are vulnerable to a denial-of-service (DoS) condition. Improper handling of incoming requests in the server component can allow a malicious client to trigger excessive resource consumption, causing the service to become unresponsive.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

pymodbus is vulnerable to Denial of Service (DoS) in versions 3.4.0 - 3.11.4.

How to fix this

Upgrade the pymodbus library to the patch version.

Are You Affected?

Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.

Free. No credit card required.

Aikido Platform