ZDI-26-516: (Pwn2Own) Phoenix Contact CHARX SEC-3150 ModBus Server Exposed Dangerous Function Denial-of-Service Vulnerability

This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Phoenix Contact CHARX SEC-3150 devices. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.5. The following CVEs are assigned: CVE-2026-44090.