Phoenix Contact K1 up to 3.49 weak password hash

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Phoenix Contact FL SWITCH 2005, FL SWITCH 2008, FL SWITCH 2016, FL SWITCH 2105, FL SWITCH 2108, FL SWITCH 2116, FL SWITCH 2204-2TC-2SFX, FL SWITCH 2205, FL SWITCH 2206-2FX, FL SWITCH 2206-2FX SM, FL SWITCH 2206-2FX SM ST, FL SWITCH 2206-2FX ST, FL SWITCH 2206-2SFX, FL SWITCH 2206-2SFX PN, FL SWITCH 2206C-2FX, FL SWITCH 2207-FX, FL SWITCH 2207-FX SM, FL SWITCH 2208, FL SWITCH 2208 PN, FL SWITCH 2208C, FL SWITCH 2212-2TC-2SFX, FL SWITCH 2214-2FX, FL SWITCH 2214-2FX SM, FL SWITCH 2214-2SFX, FL SWITCH 2214-2SFX PN, FL SWITCH 2216, FL SWITCH 2216 PN, FL SWITCH 2304-2GC-2SFP, FL SWITCH 2306-2SFP, FL SWITCH 2306-2SFP PN, FL SWITCH 2308, FL SWITCH 2308 PN, FL SWITCH 2312-2GC-2SFP, FL SWITCH 2314-2SFP, FL SWITCH 2314-2SFP PN, FL SWITCH 2316, FL SWITCH 2316 PN, FL SWITCH 2404-2TC-2SFX, FL SWITCH 2406-2SFX, FL SWITCH 2406-2SFX PN, FL SWITCH 2408, FL SWITCH 2408 PN, FL SWITCH 2412-2TC-2SFX, FL SWITCH 2414-2SFX, FL SWITCH 2414-2SFX PN, FL SWITCH 2416, FL SWITCH 2416 PN, FL SWITCH 2504-2GC-2SFP, FL SWITCH 2506-2SFP, FL SWITCH 2506-2SFP PN, FL SWITCH 2508, FL SWITCH 2508 PN, FL SWITCH 2512-2GC-2SFP, FL SWITCH 2514-2SFP, FL SWITCH 2514-2SFP PN, FL SWITCH 2516, FL SWITCH 2516 PN, FL SWITCH 2608, FL SWITCH 2608 PN, FL SWITCH 2708, FL SWITCH 2708 PN, FL SWITCH 2303-8SP1, FL NAT 2008, FL NAT 2208, FL NAT 2304-2GC-2SFP, FL SWITCH 2008F and K1 up to 3.49. Affected by this issue is some unknown functionality. Executing a manipulation can lead to weak password hash. This vulnerability is handled as CVE-2025-41692. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Phoenix Contact FL SWITCH 2005, FL SWITCH 2008, FL SWITCH 2016, FL SWITCH 2105, FL SWITCH 2108, FL SWITCH 2116, FL SWITCH 2204-2TC-2SFX, FL SWITCH 2205, FL SWITCH 2206-2FX, FL SWITCH 2206-2FX SM, FL SWITCH 2206-2FX SM ST, FL SWITCH 2206-2FX ST, FL SWITCH 2206-2SFX, FL SWITCH 2206-2SFX PN, FL SWITCH 2206C-2FX, FL SWITCH 2207-FX, FL SWITCH 2207-FX SM, FL SWITCH 2208, FL SWITCH 2208 PN, FL SWITCH 2208C, FL SWITCH 2212-2TC-2SFX, FL SWITCH 2214-2FX, FL SWITCH 2214-2FX SM, FL SWITCH 2214-2SFX, FL SWITCH 2214-2SFX PN, FL SWITCH 2216, FL SWITCH 2216 PN, FL SWITCH 2304-2GC-2SFP, FL SWITCH 2306-2SFP, FL SWITCH 2306-2SFP PN, FL SWITCH 2308, FL SWITCH 2308 PN, FL SWITCH 2312-2GC-2SFP, FL SWITCH 2314-2SFP, FL SWITCH 2314-2SFP PN, FL SWITCH 2316, FL SWITCH 2316 PN, FL SWITCH 2404-2TC-2SFX, FL SWITCH 2406-2SFX, FL SWITCH 2406-2SFX PN, FL SWITCH 2408, FL SWITCH 2408 PN, FL SWITCH 2412-2TC-2SFX, FL SWITCH 2414-2SFX, FL SWITCH 2414-2SFX PN, FL SWITCH 2416, FL SWITCH 2416 PN, FL SWITCH 2504-2GC-2SFP, FL SWITCH 2506-2SFP, FL SWITCH 2506-2SFP PN, FL SWITCH 2508, FL SWITCH 2508 PN, FL SWITCH 2512-2GC-2SFP, FL SWITCH 2514-2SFP, FL SWITCH 2514-2SFP PN, FL SWITCH 2516, FL SWITCH 2516 PN, FL SWITCH 2608, FL SWITCH 2608 PN, FL SWITCH 2708, FL SWITCH 2708 PN, FL SWITCH 2303-8SP1, FL NAT 2008, FL NAT 2208, FL NAT 2304-2GC-2SFP, FL SWITCH 2008F and K1 up to 3.49. This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a weak password hash vulnerability. The CWE definition for the vulnerability is CWE-916. The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive. As an impact it is known to affect confidentiality. CVE summarizes:

A high privileged remote attacker with admin privileges for the webUI can brute-force the "root" and "user" passwords of the underlying OS due to a weak password generation algorithm.

The weakness was released by D. Blagojevic, S. Dietz, F. Koroknai and T. Weber as VDE-2025-071. The advisory is shared for download at certvde.com. This vulnerability was named CVE-2025-41692 since 04/16/2025. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1552.

Upgrading to version 3.50 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.8
CNA Vector (CERTVDE): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Weak password hash
CWE: CWE-916 / CWE-326 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: FL SWITCH 2005/FL SWITCH 2008/FL SWITCH 2016/FL SWITCH 2105/FL SWITCH 2108/FL SWITCH 2116/FL SWITCH 2204-2TC-2SFX/FL SWITCH 2205/FL SWITCH 2206-2FX/FL SWITCH 2206-2FX SM/FL SWITCH 2206-2FX SM ST/FL SWITCH 2206-2FX ST/FL SWITCH 2206-2SFX/FL SWITCH 2206-2SFX PN/FL SWITCH 2206C-2FX/FL SWITCH 2207-FX/FL SWITCH 2207-FX SM/FL SWITCH 2208/FL SWITCH 2208 PN/FL SWITCH 2208C/FL SWITCH 2212-2TC-2SFX/FL SWITCH 2214-2FX/FL SWITCH 2214-2FX SM/FL SWITCH 2214-2SFX/FL SWITCH 2214-2SFX PN/FL SWITCH 2216/FL SWITCH 2216 PN/FL SWITCH 2304-2GC-2SFP/FL SWITCH 2306-2SFP/FL SWITCH 2306-2SFP PN/FL SWITCH 2308/FL SWITCH 2308 PN/FL SWITCH 2312-2GC-2SFP/FL SWITCH 2314-2SFP/FL SWITCH 2314-2SFP PN/FL SWITCH 2316/FL SWITCH 2316 PN/FL SWITCH 2404-2TC-2SFX/FL SWITCH 2406-2SFX/FL SWITCH 2406-2SFX PN/FL SWITCH 2408/FL SWITCH 2408 PN/FL SWITCH 2412-2TC-2SFX/FL SWITCH 2414-2SFX/FL SWITCH 2414-2SFX PN/FL SWITCH 2416/FL SWITCH 2416 PN/FL SWITCH 2504-2GC-2SFP/FL SWITCH 2506-2SFP/FL SWITCH 2506-2SFP PN/FL SWITCH 2508/FL SWITCH 2508 PN/FL SWITCH 2512-2GC-2SFP/FL SWITCH 2514-2SFP/FL SWITCH 2514-2SFP PN/FL SWITCH 2516/FL SWITCH 2516 PN/FL SWITCH 2608/FL SWITCH 2608 PN/FL SWITCH 2708/FL SWITCH 2708 PN/FL SWITCH 2303-8SP1/FL NAT 2008/FL NAT 2208/FL NAT 2304-2GC-2SFP/FL SWITCH 2008F/K1 3.50

Timelineinfo

04/16/2025 CVE reserved
12/09/2025 +237 days Advisory disclosed
12/09/2025 +0 days VulDB entry created
12/09/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: VDE-2025-071
Researcher: D. Blagojevic, S. Dietz, F. Koroknai, T. Weber
Status: Confirmed

CVE: CVE-2025-41692 (🔒)
GCVE (CVE): GCVE-0-2025-41692
GCVE (VulDB): GCVE-100-335116

Entryinfo

Created: 12/09/2025 12:09
Changes: 12/09/2025 12:09 (65)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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