CVE-2025-24002: MQTT DoS Vulnerability in German EV Charging Stations

Published Jul 8, 2025
·
Updated

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 Software

8 affected components
All of the following
Phoenixcontact Charx Sec-3000 Firmware<=1.6.5
Phoenixcontact Charx Sec-3000
All of the following
Phoenixcontact Charx Sec-3050 Firmware<=1.6.5
Phoenixcontact Charx Sec-3050
All of the following
Phoenixcontact Charx Sec-3100 Firmware<=1.6.5
Phoenixcontact Charx Sec-3100
All of the following
Phoenixcontact Charx Sec-3150 Firmware<=1.6.5
Phoenixcontact Charx Sec-3150

Event History

Jul 8, 2025
CVE Published
via MITRE·06:58 AM
Data Sourced
via MITRE·06:58 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·07:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-24002?

CVE-2025-24002 has been classified as a denial-of-service vulnerability affecting specific Phoenix Contact charging stations.

2

How does CVE-2025-24002 affect charging stations?

CVE-2025-24002 allows an unauthenticated remote attacker to crash the service on affected charging stations using MQTT messages.

3

Which firmware versions are vulnerable in CVE-2025-24002?

CVE-2025-24002 affects Phoenix Contact Charx Sec-3000, Sec-3050, Sec-3100, and Sec-3150 firmware versions up to and including 1.6.5.

4

How can I mitigate the risk of CVE-2025-24002?

To mitigate CVE-2025-24002, upgrade the affected firmware to a version that is not vulnerable.

5

Is authentication required to exploit CVE-2025-24002?

No, CVE-2025-24002 can be exploited by unauthenticated remote attackers.

Contact

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