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CVE-2025-41697

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CVE-2025-41697

Published: Dec 9, 2025

Modified: Dec 9, 2025

PUBLISHED

CVSS v3.1

6.8

MEDIUM

Description

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.

VendorProductVersions

Phoenix Contact

FL SWITCH 2005

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2008

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2016

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2105

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2108

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2116

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2204-2TC-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2205

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2206-2FX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2206-2FX SM

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2206-2FX SM ST

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2206-2FX ST

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2206-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2206-2SFX PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2206C-2FX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2207-FX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2207-FX SM

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2208

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2208 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2208C

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2212-2TC-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2214-2FX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2214-2FX SM

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2214-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2214-2SFX PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2216

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2216 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2304-2GC-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2306-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2306-2SFP PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2308

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2308 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2312-2GC-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2314-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2314-2SFP PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2316

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2316 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2404-2TC-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2406-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2406-2SFX PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2408

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2408 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2412-2TC-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2414-2SFX

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2414-2SFX PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2416

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2416 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2504-2GC-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2506-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2506-2SFP PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2508

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2508 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2512-2GC-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2514-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2514-2SFP PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2516

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2516 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2608

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2608 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2708

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2708 PN

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2303-8SP1

affected
0.0.0 - < 3.50

Phoenix Contact

FL NAT 2008

affected
0.0.0 - < 3.50

Phoenix Contact

FL NAT 2208

affected
0.0.0 - < 3.50

Phoenix Contact

FL NAT 2304-2GC-2SFP

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2008F

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2316/K1

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2506-2SFP/K1

affected
0.0.0 - < 3.50

Phoenix Contact

FL SWITCH 2508/K1

affected
0.0.0 - < 3.50

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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