Medium severity6.8NVD Advisory· Published Dec 9, 2025· Updated Jun 17, 2026

CVE-2025-41697

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

138

Phoenixcontact/Fl Switch 2204 2tc 2sfx Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2204-2tc-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/Fl Switch 2206 2fx Sm Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_sm_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/Fl Switch 2206 2fx Sm St Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_sm_st_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/Fl Switch 2206 2fx St Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_st_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/Fl Switch 2206 2sfx Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2206-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/Fl Switch 2206 2sfx Pn Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2206-2sfx_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/Fl Switch 2206c 2fx Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2206c-2fx_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/Fl Switch 2207 Fx Sm Firmwarecpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- cpe:2.3:o:phoenixcontact:fl_switch_2207-fx_sm_firmware:*:*:*:*:*:*:*:*range: <3.50
Phoenixcontact/FL SWITCHcpe-rescue34 versions
0.0.0+ 33 more
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
Phoenixcontact/FL NAT 2304-2GC-2SFPcpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
Phoenixcontact/FL NAT 2208cpe-rescue2 versions
0.0.0+ 1 more
- (no CPE)range: 0.0.0
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2708 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2708_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2608 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2608_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2516 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2516_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2516 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2516_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2514 2sfp Pn Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2514-2sfp_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2514-2sfp_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2514 2sfp Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2514-2sfp_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2514-2sfp_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2512 2gc 2sfp Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2512-2gc-2sfp_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2512-2gc-2sfp_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2508 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2508_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2508\/k1 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2508\/k1_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2508 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2508_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2506 2sfp Pn Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2506-2sfp_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2506-2sfp_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2506 2sfp\/k1 Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2506-2sfp\/k1_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2506-2sfp\/k1_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2506 2sfp Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2506-2sfp_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2506-2sfp_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2416 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2416_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2414 2sfx Pn Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2414-2sfx_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2414-2sfx_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2414 2sfx Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2414-2sfx_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2414-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2708 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2708_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2608 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2608_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2504 2gc 2sfp Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2504-2gc-2sfp_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2504-2gc-2sfp_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2416 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2416_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2408 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2408_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2408 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2408_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2316 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2316_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2306 2sfp Pn Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2306-2sfp_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2306-2sfp_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2306 2sfp Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2306-2sfp_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2306-2sfp_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2304 2gc 2sfp Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2304-2gc-2sfp_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2303 8sp12 versions
cpe:2.3:o:phoenixcontact:fl_switch_2303-8sp1:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2303-8sp1:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2216 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2216_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2216 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2216_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2214 2sfx Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2214-2sfx_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2214-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2208 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2208_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2406 2sfx Pn Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2406-2sfx_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2406-2sfx_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2406 2sfx Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2406-2sfx_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2406-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2404 2tc 2sfx Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2404-2tc-2sfx_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2404-2tc-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2208 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2208_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2412 2tc 2sfx Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2412-2tc-2sfx_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2412-2tc-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2316\/k1 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2316\/k1_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2316 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2316_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2314 2sfp Pn Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2314-2sfp_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2314-2sfp_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2314 2sfp Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2314-2sfp_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2314-2sfp_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2312 2gc 2sfp Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2312-2gc-2sfp_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2312-2gc-2sfp_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2308 Pn Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2308_pn_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2308 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2308_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2214 2sfx Pn Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2214-2sfx_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2214-2sfx_pn_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2214 2fx Sm Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2214-2fx_sm_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2214-2fx_sm_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2214 2fx Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2214-2fx_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2212 2tc 2sfx Firmware2 versions
cpe:2.3:o:phoenixcontact:fl_switch_2212-2tc-2sfx_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:phoenixcontact:fl_switch_2212-2tc-2sfx_firmware:*:*:*:*:*:*:*:*range: <3.50
- (no CPE)range: 0.0.0
Phoenixcontact/Fl Switch 2208c Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2208c_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2206 2fx Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2205 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2205_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2116 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2116_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2108 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2108_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2105 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2105_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2016 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2016_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2008f Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2008f_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2008 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2008_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2005 Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2005_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Nat 2304 2gc 2sfp Firmware
cpe:2.3:o:phoenixcontact:fl_nat_2304-2gc-2sfp_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Nat 2208 Firmware
cpe:2.3:o:phoenixcontact:fl_nat_2208_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Switch 2207 Fx Firmware
cpe:2.3:o:phoenixcontact:fl_switch_2207-fx_firmware:*:*:*:*:*:*:*:*
Range: <3.50
Phoenixcontact/Fl Nat 2008 Firmware
cpe:2.3:o:phoenixcontact:fl_nat_2008_firmware:*:*:*:*:*:*:*:*
Range: <3.50

cvss	0.442
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

CVE-2025-41697

Description

AI Insight

Affected products

Patches

Vulnerability mechanics

References

News mentions