CVE-2026-44092: Phoenix Contact CHARX SEC-3xxx CRLF injection in ModbusServer

CVE-2026-44092 · Severity: critical · CVSS 9.1 · Published 2026-07-30

Phoenix Contact CHARX charging controllers, which manage electric vehicle charging stations, are vulnerable to a remote attack. An unauthenticated attacker can inject malicious data into the device's communication system, potentially disrupting charging operations or altering system settings. This could lead to service outages or unauthorized changes to how the charging station functions.

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-2026-44092 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-44092 being exploited in the wild.
How severe is CVE-2026-44092?
Critical severity, with a CVSS score of 9.1, published 30 July 2026.
Which products and versions are affected?
Phoenix Contact CHARX SEC-3000 Firmware < 1.9.1; Phoenix Contact CHARX SEC-3050 Firmware < 1.9.1; Phoenix Contact CHARX SEC-3100 Firmware < 1.9.1; Phoenix Contact CHARX SEC-3150 Firmware < 1.9.1.
Is there a fix for CVE-2026-44092?
A patch was published on 2026-07-30: Fixed in firmware version 1.9.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-44092 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2026-44092?
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 ModbusServer application in Phoenix Contact CHARX SEC-3xxx firmware fails to properly validate input fetched from the MQTT broker. This vulnerability is classified as a CRLF injection (CWE-93), where an unauthenticated remote attacker can inject malicious sequences into the application. The attack vector is over the network and requires no user interaction or prior authentication. Successful exploitation can lead to a loss of integrity and availability of the charging controller. The issue is addressed in firmware version 1.9.1.

Affected products

  • Phoenix Contact CHARX SEC-3000 Firmware < 1.9.1
  • Phoenix Contact CHARX SEC-3050 Firmware < 1.9.1
  • Phoenix Contact CHARX SEC-3100 Firmware < 1.9.1
  • Phoenix Contact CHARX SEC-3150 Firmware < 1.9.1

Timeline

  • 2026-07-30: advisory
  • 2026-07-30: patched: Fixed in firmware version 1.9.1

References

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