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

CVE-2025-41704

Phoenix Contact: Unauthenticated Modbus Service DoS via Crafted Function Code PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Phoenix Contact / QUINT4-UPS/24DC/24DC/5/EIP	affected VC:00 before VC:07
Phoenix Contact / QUINT4-UPS/24DC/24DC/10/EIP	affected VC:00 before VC:07
Phoenix Contact / QUINT4-UPS/24DC/24DC/20/EIP	affected VC:00 before VC:07
Phoenix Contact / QUINT4-UPS/24DC/24DC/40/EIP	affected VC:00 before VC:07

CWE

CWE-770

References

https://certvde.com/de/advisories/VDE-2025-072

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://seclists.org/fulldisclosure/2025/Oct/12