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EUVD-2026-262890

fkie_cve-2025-41697

An attacker can use an undocumented UART port on the PCB as a side-channel to get root access e.g. with the credentials obtained from CVE-2025-41692.

GHSA-ccrq-w269-c7pj

An attacker can use an undocumented UART port on the PCB as a side-channel to get root access e.g. with the credentials obtained from CVE-2025-41692.

VDE-2025-071 — Phoenix Contact: Multiple Vulnerabilities in FL SWITCH 2xxx Firmware

Multiple vulnerabilities have been identified in the FL SWITCH 2xxx firmware prior to version 3.50. Two of these (CVE-2025-41692 and CVE-2025-41696) enable an attacker to access the device's file system. Two other vulnerabilities (CVE-2025-41693 and CVE-2025-41694) are related to Denial of Service (DoS) attacks, which partly limit the device's functionality. Another vulnerability (CVE-2025-41697) allows an unauthenticated physical attacker to access a login shell via an undocumented UART port. Furthermore, there are multiple vulnerabilities relating to reflected cross-site scripting in the web-based management of the device. All vulnerabilities have been resolved in firmware version 3.50.

WID-SEC-W-2025-2760 — Phoenix Contact FL SWITCH: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Phoenix Contact FL SWITCH ausnutzen, um Informationen offenzulegen, um einen Cross-Site Scripting Angriff durchzuführen, um einen Denial of Service Angriff durchzuführen, und um Sicherheitsvorkehrungen zu umgehen.