CVE-2015-4051: Beckhoff IPC Diagnostics before 1.8 does not properly restrict access to functions in /config, which allows...

Security readout for executives and security teams

CVE-2015-4051 is an access-control flaw in Beckhoff IPC Diagnostics before 1.8. A remote attacker could reach configuration functions that should be protected, potentially rebooting or shutting down devices, creating users, or causing other unspecified effects. For industrial systems, the main business risk is operational disruption and unauthorized administrative change. Exposure is most likely where Beckhoff IPC Diagnostics before 1.8 is enabled and reachable over a network, especially from untrusted IT, vendor, or internet paths. The provided data does not enumerate specific models beyond Beckhoff IPC Diagnostics and a referenced CX9020-related public writeup. Prioritize remediation for any exposed industrial or operations network device because the documented effects include shutdown, reboot, and unauthorized user creation. If all affected diagnostics interfaces are isolated and upgraded, urgency decreases, but validation should be explicit. Mitigation focus: Upgrade Beckhoff IPC Diagnostics to a non-affected version, following Beckhoff Advisory-2015-001.; Restrict diagnostic and configuration interfaces to trusted management networks only.; Block untrusted access to /config and /upnpisapi paths where applicable..

Prepared

Jun 13, 2026, 22:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.