CVE-2025-54849CWE-306

CVE-2025-54849

High · published December 1, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
23.9
In the wild
Unconfirmed
What it is

⚡ A single crafted Modbus TCP message can take down the Socomec DIRIS Digiware M-70 like a well-placed domino! 🎲 Think of the device as a well-oiled factory line, where each machine responds to specific signals. Imagine if someone sent a rogue command that rerouted everything to a dead end—total chaos ensues! This denial-of-service vulnerability could leave your device non-operational, disrupting whatever processes it manages. An attacker could exploit this by sending crafted packets, freezing your operations and possibly leading to significant downtime and loss of productivity.

Put simply

Think of the device as a well-oiled factory line, where each machine responds to specific signals. Imagine if someone sent a rogue command that rerouted everything to a dead end—total chaos ensues! The flaw lies in the Modbus TCP and Modbus RTU over TCP functionality, where a crafted packet sent to port 502 using the Write Single Register function (code 6) can change the Modbus address. This change effectively locks the device into a denial-of-service state.

What to do

This denial-of-service vulnerability could leave your device non-operational, disrupting whatever processes it manages. An attacker could exploit this by sending crafted packets, freezing your operations and possibly leading to significant downtime and loss of productivity. To mitigate this risk, ensure your device firmware is updated to the latest version, which addresses this vulnerability. Additionally, consider implementing network security measures to filter potentially harmful packets before they reach the device. You've got this! With these steps, you'll have your systems secured in no time! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00321 · 23.9th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-12-01T21:15Z
Affected products (1)
ProductVersionsFixed in
socomec/diris_digiware_m-70_firmwareall versions—
References (1)
EPSS history
Timeline
  • 01 DEC 15:25Z
    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
    cvelistv5