(Pwn2Own) Phoenix Contact CHARX SEC-3150 OCPP Missing Authentication for Critical Function Authentication Bypass Vulnerability

July 30th, 2026
ZDI-26-509 ZDI-CAN-29091

CVE ID

CVE-2026-44101

CVSS Score

5.0 AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected Vendors

Phoenix Contact

Affected Products

CHARX SEC-3150

Vulnerability Details

This vulnerability allows network-adjacent attackers to modify configuration on affected installations of Phoenix Contact CHARX SEC-3150 devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the export-import endpoint. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system.

Additional Details

Fixed in firmware v1.9.1, available by Aug 12, 2026.
https://certvde.com/en/advisories/VDE-2026-008/


Disclosure Timeline

  • 2026-02-09 - Vulnerability reported to vendor
  • 2026-07-30 - Coordinated public release of advisory
  • 2026-07-30 - Advisory Updated

Credit

Bongeun Koo (@kiddo_pwn) and Evangelos Daravigkas (@freddo_1337) of Team DDOS

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