CVE-2026-44107: Phoenix Contact Charx Sec-3000

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A reboot of the charging controller can be triggered via Modbus TCP without authentication. Therefore, when the Modbus functionality is enabled by opening the port that CharxModbusServer is listening, an unauthenticated attacker can perform a Denial-of-Service attack.

Affected products

• Phoenix Contact Charx Sec-3000: from 1.0.0, before 1.9.1 (fixed in 1.9.1)
• Phoenix Contact Charx Sec-3050: from 1.0.0, before 1.9.1 (fixed in 1.9.1)
• Phoenix Contact Charx Sec-3100: from 1.0.0, before 1.9.1 (fixed in 1.9.1)
• Phoenix Contact Charx Sec-3150: from 1.0.0, before 1.9.1 (fixed in 1.9.1)

Published 2026-07-30. Last modified 2026-07-30.