CVE-2025-55221

High · 7.5

CVSS

7.5

EPSS

0.4%

Published

Dec 1, 2025

CISA due date

—

The record

A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over TCP USB Function functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted network packet can lead to a denial of service. An attacker can send an unauthenticated packet to trigger this vulnerability.This vulnerability is specific to the malicious message sent via Modbus TCP over port 502.

Affected packages

Ecosystem	Package	Introduced	Fixed