CVE-2025-55221

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.

Score

CVSS 3.1 8.6 High

Status

Analyzed - talos-cna@cisco.com

Published

2025-12-01

Last modified

2025-12-01

Weaknesses

CWE-306

Affected products

• Diris Digiware M-70 (Socomec)
• Diris M-70 Firmware (Socomec)

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2025-2251