Vulnerability · Published Oct 14, 2025 · Assigned by CERTVDE
CVE-2025-41703Phoenix Contact: UPS Shutdown via Unauthenticated Modbus Command
High 7.5
In plain English
A high-severity missing authentication in QUINT4-UPS/24DC/24DC/10/EIP from Phoenix Contact. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.1%top 35.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An unauthenticated remote attacker can cause a Denial of Service by turning off the output of the UPS via Modbus command.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Phoenix Contact | QUINT4-UPS/24DC/24DC/5/EIP | VC:00 – through VC:07 |
| Phoenix Contact | QUINT4-UPS/24DC/24DC/10/EIP | VC:00 – through VC:07 |
| Phoenix Contact | QUINT4-UPS/24DC/24DC/20/EIP | VC:00 – through VC:07 |
| Phoenix Contact | QUINT4-UPS/24DC/24DC/40/EIP | VC:00 – through VC:07 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H