CVE-2025-41704 MEDIUM

CVE-2025-41704: Phoenix Contact: Unauthenticated Modbus Service DoS via Crafted Function Code

Vendor Phoenix Contact
Product QUINT4-UPS/24DC/24DC/5/EIP
Weakness CWE-770 · Uncontrolled resource consumption
Published October 14, 2025
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

An unauthanticated remote attacker can perform a DoS of the Modbus service by sending a specific function and sub-function code without affecting the core functionality.

Key dates

02Disclosure timeline

October 14, 2025 CVE published
November 3, 2025 Record updated