CVE-2025-55221
High
Description
A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over TCP USB Function functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted network packet can lead to a denial of service. An attacker can send an unauthenticated packet to trigger this vulnerability.This vulnerability is specific to the malicious message sent via Modbus TCP over port 502.
SeverityHigh
CVSS8.6
Exploit probability—
ProductSocomec Diris M-70 Firmware
PublishedDec 1, 2025
First seenDec 1, 2025
Weakness typeCWE-306Missing authentication for critical function
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| socomec diris_m-70_firmware | 1.6.9 | — |
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