CVE-2025-54848Network attack vector

Modbus service interruption via unauthenticated address change

Published Dec 1, 2025 · Updated Dec 1, 2025

Missing authentication in Socomec DIRIS Digiware M-70 1.6.9 allows remote attackers to interrupt Modbus communications. The port 502 service accepts unauthenticated Write Single Register messages that stage and commit a new Modbus address without authorization. The three-message sequence leaves the gateway unresponsive to mismatched Modbus RTU-over-TCP requests and returns exception 11 to later Modbus TCP requests, interrupting attached tools and devices.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Socomec DIRIS Digiware M-70 1.6.9 allows remote attackers to interrupt Modbus communications. The port 502 service accepts unauthenticated Write Single Register messages that stage and commit a new Modbus address without authorization. The three-message sequence leaves the gateway unresponsive to mismatched Modbus RTU-over-TCP requests and returns exception 11 to later Modbus TCP requests, interrupting attached tools and devices.

The record

CVE
CVE-2025-54848
Published
Dec 1, 2025
Updated
Dec 1, 2025
Vendor
Socomec
Product
DIRIS Digiware M-70
Classifications
CWE-306, T0814
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

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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
T0814Denial 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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