# CVE-2025-55222: A denial of service vulnerability exists in the Modbus TCP and Modbus RTU over TCP USB Function functionality of…

Source: https://junglewise.ai/threats/cve-2025-55222-a-denial-of-service-vulnerability-exists-in-the-modbus-tcp-and  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-01  
License: CC BY 4.0 with a link back

CVE-2025-55222 · Severity: high · CVSS 8.6 · Published 2025-12-01

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 RTU over TCP on port 503.

Technologies: [Socomec Diris M-70](https://junglewise.ai/threats/technologies/diris-m-70), [Socomec Diris M-70 Firmware](https://junglewise.ai/threats/technologies/diris-m-70-firmware). Vendors: [Socomec](https://junglewise.ai/threats/vendors/socomec).

## Quick answers

**Is CVE-2025-55222 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-55222 being exploited in the wild.

**How severe is CVE-2025-55222?** High severity, with a CVSS score of 8.6, published 1 December 2025.

**Which products and versions are affected?** Socomec Diris M-70, Socomec Diris M-70 Firmware. The advisory does not name versions.

**Is there a fix for CVE-2025-55222?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-55222?** Check whether you run Socomec Diris M-70 or Socomec Diris M-70 Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Socomec Diris M-70
- Socomec Diris M-70 Firmware

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