---
id: CVE-2025-54849
title: >-
  A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over
  TCP functionality of Socomec DIRIS Digiware M-70 1.6.9
summary: >-
  A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over
  TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted
  series of network requests can lead to a denial of service. An attacker can
  send a…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-306
vendor: socomec
product: diris_digiware_m-70_firmware
affected:
  - diris_digiware_m-70_firmware = 1.6.9
published: '2025-12-01'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T00:10:00.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-54849'
references:
  - url: 'https://talosintelligence.com/vulnerability_reports/TALOS-2025-2248'
    label: talos-cna@cisco.com
tags:
  - nvd
epss: 0.00321
epssPercentile: 0.22532
ingestedAt: '2026-09-26T00:22:39.984Z'
---

## Overview

A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted series of network requests can lead to a denial of service. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.An attacker can trigger this denial-of-service condition by sending a single Modbus TCP message to port 502 using the Write Single Register function code (6) to write the value 1 to register 4352. This action changes the Modbus address to 15. After this message is sent, the device will be in a denial-of-service state.

## Affected

- `diris_digiware_m-70_firmware = 1.6.9`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.