CVE-2025-41703

HIGH

Phoenix Contact QUINT4-UPS - Unauthenticated Denial of Service via Modbus Command

Title source: llm

An unauthenticated remote attacker can cause a Denial of Service by turning off the output of the UPS via Modbus command.

Core 2

Core References

Various Sources

Mailing List

CVSS v3 7.5

EPSS 0.0100

EPSS Percentile 58.0%

Attack Vector NETWORK

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

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

CWE

CWE-306

Status published

Products (4)

Phoenix Contact/QUINT4-UPS/24DC/24DC/10/EIP VC:00 - VC:07

Phoenix Contact/QUINT4-UPS/24DC/24DC/20/EIP VC:00 - VC:07

Phoenix Contact/QUINT4-UPS/24DC/24DC/40/EIP VC:00 - VC:07

Phoenix Contact/QUINT4-UPS/24DC/24DC/5/EIP VC:00 - VC:07

Published Oct 14, 2025

Tracked Since Feb 18, 2026