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TI-2025-27666 Aliases CVE-2025-41703GHSA-gv4w-qrcx-c827

Phoenix Contact: UPS Shutdown via Unauthenticated Modbus Command

Priority LOW 35CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01055 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Phoenix ContactQUINT4-UPS/24DC/24DC/5/EIPVC:00 – VC:07—No fix listedCNA
Phoenix ContactQUINT4-UPS/24DC/24DC/10/EIPVC:00 – VC:07—No fix listedCNA
Phoenix ContactQUINT4-UPS/24DC/24DC/20/EIPVC:00 – VC:07—No fix listedCNA
Phoenix ContactQUINT4-UPS/24DC/24DC/40/EIPVC:00 – VC:07—No fix listedCNA
  • QUINT4-UPS/24DC/24DC/5/EIP VendorPhoenix Contact Affected VC:00 – VC:07 Fixed in — No fix listed CNA
  • QUINT4-UPS/24DC/24DC/10/EIP VendorPhoenix Contact Affected VC:00 – VC:07 Fixed in — No fix listed CNA
  • QUINT4-UPS/24DC/24DC/20/EIP VendorPhoenix Contact Affected VC:00 – VC:07 Fixed in — No fix listed CNA
  • QUINT4-UPS/24DC/24DC/40/EIP VendorPhoenix Contact Affected VC:00 – VC:07 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-41703
  2. 2026-10-03 Alias added: GHSA-gv4w-qrcx-c827

References

Other 1

  • TI-2014-07463 Phoenix Contact Software ProConOs and MultiProg Missing Authentication for Critical Function CVSS 2.0CRITICAL 10.0
  • TI-2024-17093 PHOENIX CONTACT: Remote code execution in CHARX Series CVSS 3.1CRITICAL 9.8
  • TI-2022-13692 Insufficient Verification of Data Vulnerability in PHOENIX CONTACT classic line industrial controllers CVSS 3.1CRITICAL 9.8
  • TI-2026-21959 Remote code execution via uploading a malicious IODD file CVSS 3.1CRITICAL 9.8
  • TI-2026-21940 Authentication Bypass in _account_log CVSS 3.1CRITICAL 9.8
  • TI-2023-03334 PHOENIX CONTACT: OS Command Injection in WP 6xxx Web panels CVSS 3.1CRITICAL 10.0
See all 194 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences