CVE-2025-54849Public exploitNetwork attack vector

Modbus communication interruption via unauthenticated register write

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 via a crafted request. The Modbus TCP service accepts an unauthenticated function-code 6 write of value 1 to register 4352, changing the gateway address to 15. Network access to TCP port 502 is sufficient; the device then stops responding normally across its Modbus links, without reported data disclosure or code execution.

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

Missing authentication in Socomec DIRIS Digiware M-70 1.6.9 allows remote attackers to interrupt Modbus communications via a crafted request. The Modbus TCP service accepts an unauthenticated function-code 6 write of value 1 to register 4352, changing the gateway address to 15. Network access to TCP port 502 is sufficient; the device then stops responding normally across its Modbus links, without reported data disclosure or code execution.

The record

CVE
CVE-2025-54849
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?

Compare these published version ranges with your installed build and any vendor patches.

  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 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 exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T0814Denial of Service

Public exploit references

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Technologies

Your stack

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Your stack

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