(Pwn2Own) Phoenix Contact CHARX SEC-3150 Missing Cryptographic Signature Remote Code Execution Vulnerability

July 30th, 2026
ZDI-26-510 ZDI-CAN-29094

CVE ID

CVE-2026-44104

CVSS Score

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

Affected Vendors

Phoenix Contact

Affected Products

CHARX SEC-3150

Vulnerability Details

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

The specific flaw exists within the CharxControllerAgent binary. The issue results from the lack of validation prior to updating the firmware. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the charging controller.

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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