(Pwn2Own) Phoenix Contact CHARX SEC-3150 Privilege Defined With Unsafe Actions Local Privilege Escalation Vulnerability

July 30th, 2026
ZDI-26-507 ZDI-CAN-29109

CVE ID

CVE-2026-44096

CVSS Score

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

Affected Vendors

Phoenix Contact

Affected Products

CHARX SEC-3150

Vulnerability Details

This vulnerability allows local attackers to escalate privileges on affected installations of Phoenix Contact CHARX SEC-3150 devices. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the sudo rules. The issue results from allowing privileged execution of a binary that can have unsafe effects. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.

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

Hyeongseok Lee (@fluorite_pwn), Yunje Shin (@YunjeShin), Chaeeul Hyun (@yskm_Gunter), Ingyu Yang (@Mafty5275), Hoseok Kang (@cl4y419), Seungyeon Park (@vvsy46), and Wonjun Choi (@won6_choi) of BoB::Takedown

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