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CVE-2025-20085 — A denial of service vulnerability exists in the Modbus RTU over TCP functionality of Socomec DIRIS…

Socomec · Diris M-70 Firmware · Published 1 Dec 2025 · Modified 26 Sept 2026

Description

A denial of service vulnerability exists in the Modbus RTU over TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted network packet can lead to denial of service and weaken credentials resulting in default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.

References

What to do
  1. Check whether Diris M-70 Firmware is in your asset inventory.
  2. Patch in the next maintenance window; prioritise internet-facing systems.
  3. Record the decision in your risk register for audit evidence.
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Link: adminadda.com/cve/CVE-2025-20085