CVE-2026-44101: Phoenix Contact CHARX SEC-3xxx missing authentication in OCPP Agent

CVE-2026-44101 · Severity: critical · CVSS 9.8 · Published 2026-07-30

Phoenix Contact CHARX charging controllers, used to manage electric vehicle (EV) charging stations, contain a security flaw in their communication service. An unauthorized person can remotely change the device's backend connection settings without a password. This could allow an attacker to disrupt charging services or intercept sensitive data transmitted by the controller.

Technologies: Phoenix Contact CHARX SEC-3000, Phoenix Contact CHARX SEC-3050, Phoenix Contact CHARX SEC-3100, Phoenix Contact CHARX SEC-3150. Vendors: Phoenix Contact.

Quick answers

Is CVE-2026-44101 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-44101 being exploited in the wild.
How severe is CVE-2026-44101?
Critical severity, with a CVSS score of 9.8, published 30 July 2026.
Which products and versions are affected?
Phoenix Contact CHARX SEC-3000 1.0.0 to 1.9.1 (exclusive); Phoenix Contact CHARX SEC-3050 1.0.0 to 1.9.1 (exclusive); Phoenix Contact CHARX SEC-3100 1.0.0 to 1.9.1 (exclusive); Phoenix Contact CHARX SEC-3150 1.0.0 to 1.9.1 (exclusive).
Is there a fix for CVE-2026-44101?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-44101 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-44101?
Check whether you run Phoenix Contact CHARX SEC-3000, Phoenix Contact CHARX SEC-3050, Phoenix Contact CHARX SEC-3100 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is classified as Missing Authentication for Critical Function (CWE-306) within the CHARX OCPP Agent service. This service is responsible for handling the Open Charge Point Protocol (OCPP) communications on Phoenix Contact CHARX SEC-3xxx series charging controllers. An unauthenticated remote attacker can exploit this lack of authentication to reconfigure the backend connection settings. Successful exploitation can result in a Denial-of-Service (DoS) by redirecting traffic or the disclosure of confidential data to an attacker-controlled server. The issue is addressed in firmware version 1.9.1.

Affected products

  • Phoenix Contact CHARX SEC-3000 1.0.0 to 1.9.1 (exclusive)
  • Phoenix Contact CHARX SEC-3050 1.0.0 to 1.9.1 (exclusive)
  • Phoenix Contact CHARX SEC-3100 1.0.0 to 1.9.1 (exclusive)
  • Phoenix Contact CHARX SEC-3150 1.0.0 to 1.9.1 (exclusive)

Timeline

  • 2026-07-30: disclosed
  • 2026-07-30: advisory

References

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