CVE-2025-54850Network attack vector

Service interruption via unauthenticated Modbus address change

Published Dec 1, 2025 · Updated Dec 1, 2025

Denial of service in Socomec DIRIS Digiware M-70 1.6.9 allows remote attackers to interrupt Modbus communications via port 503. The Modbus RTU over TCP service accepts unauthenticated function-code 6 writes that stage a new address in registers 58112 and 29440, then commit it through register 57856. The address change stops the gateway from answering mismatched requests and interrupts communications with connected Modbus tools and devices.

CVSS severity7.5
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Socomec DIRIS Digiware M-70 1.6.9 allows remote attackers to interrupt Modbus communications via port 503. The Modbus RTU over TCP service accepts unauthenticated function-code 6 writes that stage a new address in registers 58112 and 29440, then commit it through register 57856. The address change stops the gateway from answering mismatched requests and interrupts communications with connected Modbus tools and devices.

The record

CVE
CVE-2025-54850
Published
Dec 1, 2025
Updated
Dec 1, 2025
Vendor
Socomec
Product
DIRIS Digiware M-70
Classifications
CWE-306, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=1.6.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Socomec · DIRIS Digiware M-70version=1.6.9

Published CVSS scores

7.5Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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