CVE-2025-24002: Phoenixcontact Charx Sec-3000 Firmware

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

An unauthenticated remote attacker can use MQTT messages to crash a service on charging stations complying with German Calibration Law, resulting in a temporary denial-of-service for these stations until they got restarted by the watchdog.

Affected products

• Phoenixcontact Charx Sec-3000 Firmware: up to and including 1.6.5
• Phoenixcontact Charx Sec-3050 Firmware: up to and including 1.6.5
• Phoenixcontact Charx Sec-3100 Firmware: up to and including 1.6.5
• Phoenixcontact Charx Sec-3150 Firmware: up to and including 1.6.5

Published 2025-07-08. Last modified 2026-06-17.