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8.6HIGH

CVE-2025-26858 — A buffer overflow vulnerability exists in the Modbus TCP functionality of Socomec DIRIS Digiware M-70 1.6.9.

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

Description

A buffer overflow vulnerability exists in the Modbus TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted set of network packets can lead to denial of service. An attacker can send a sequence of unauthenticated packets 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-2025-26858