CVE-2025-55221

| EUVD-2025-200036 HIGH
2025-12-01 [email protected]
8.6
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 15, 2026 - 13:34 vuln.today
EUVD ID Assigned
Mar 15, 2026 - 13:34 euvd
EUVD-2025-200036
CVE Published
Dec 01, 2025 - 16:15 nvd
HIGH 8.6

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.

Analysis

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.

Technical Context

An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Missing Authentication for Critical Function (CWE-306).

Affected Products

Affected products: Socomec Diris M-70 Firmware 1.6.9

Remediation

Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.

Priority Score

43
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +43
POC: 0

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CVE-2025-55221 vulnerability details – vuln.today

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