CVE-2025-24002: charx sec-3000 Input Validation Flaw

Description

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.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor	Product	Versions
phoenixcontact	charx_sec-3000_firmware	< 1.6.5
phoenixcontact	charx_sec-3000	All
phoenixcontact	charx_sec-3050_firmware	< 1.6.5
phoenixcontact	charx_sec-3050	All
phoenixcontact	charx_sec-3100_firmware	< 1.6.5
phoenixcontact	charx_sec-3100	All
phoenixcontact	charx_sec-3150_firmware	< 1.6.5
phoenixcontact	charx_sec-3150	All

References

Other References

https://certvde.com/en/advisories/VDE-2025-014

Frequently Asked Questions

What is CVE-2025-24002? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-24002? +

CVE-2025-24002 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-24002? +

CVE-2025-24002 affects products from phoenixcontact, specifically: charx_sec-3000, charx_sec-3000_firmware, charx_sec-3050, charx_sec-3050_firmware, charx_sec-3100, charx_sec-3100_firmware, charx_sec-3150, charx_sec-3150_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-24002? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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