Is CVE-2026-44091 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-44091 being exploited in the wild.

How severe is CVE-2026-44091?

Critical severity, with a CVSS score of 9.1, 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-2026-44091?

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-2026-44091 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-44091?

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.

CVE-2026-44091: Phoenix Contact CHARX SEC trust boundary violation in MQTT Broker

CVE-2026-44091 · Severity: critical · CVSS 9.1 · Published 2026-07-30

Phoenix Contact CHARX SEC charging controllers, used in electric vehicle charging infrastructure, are vulnerable to unauthorized configuration changes. An attacker can remotely inject malicious data into the system's internal messaging service to create new configuration entries. This could allow an attacker to disrupt charging operations or compromise the integrity of the device's settings.

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-2026-44091 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-44091 being exploited in the wild.
How severe is CVE-2026-44091?: Critical severity, with a CVSS score of 9.1, 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-2026-44091?: 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-2026-44091 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-44091?: 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

A trust boundary violation (CWE-501) exists in Phoenix Contact CHARX SEC-3xxx firmware versions prior to 1.9.1. The vulnerability allows an unauthenticated remote attacker to publish a malicious ID to the internal MQTT broker. This action results in the unauthorized creation of new configuration entries within the system configuration. Successful exploitation can lead to a loss of system integrity and availability, potentially disrupting charging services. 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

https://www.certvde.com/en/advisories/VDE-2026-008/

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