CVE-2025-41697

high-risk
Published 2025-12-09

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.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10 Medium
PHYSICAL / LOW complexity

Affected Products (20)

Fl Switch 2708 Pn Firmware
Fl Switch 2708 Firmware
Fl Switch 2608 Pn Firmware
Fl Switch 2608 Firmware
Fl Switch 2516 Pn Firmware
Fl Switch 2516 Firmware
Fl Switch 2514-2Sfp Pn Firmware
Fl Switch 2514-2Sfp Firmware
Fl Switch 2512-2Gc-2Sfp Firmware
Fl Switch 2508 Pn Firmware
Fl Switch 2508\/K1 Firmware
Fl Switch 2508 Firmware
Fl Switch 2506-2Sfp Pn Firmware
Fl Switch 2506-2Sfp\/K1 Firmware
Fl Switch 2506-2Sfp Firmware
Fl Switch 2504-2Gc-2Sfp Firmware
Fl Switch 2416 Pn Firmware
Fl Switch 2416 Firmware
Fl Switch 2414-2Sfx Pn Firmware
Fl Switch 2414-2Sfx Firmware

Affected Vendors

Phoenixcontact

References (1)

Third Party Advisory https://certvde.com/de/advisories/VDE-2025-071
50
/ 100
high-risk
Severity 22/34 · High
Exploitability 0/34 · Minimal
Exposure 28/34 · Critical