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CVE-2025-41692— Weak/Predictable root Password

Quick assessment

Affected
Phoenix Contact FL SWITCH 2005
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PHOENIX CONTACT FL SWITCH是德国菲尼克斯电气（PHOENIX CONTACT）公司的一款工业级以太网交换机。 PHOENIX CONTACT FL SWITCH 3.50之前版本存在安全漏洞，该漏洞源于弱密码生成算法，可能导致暴力破解攻击。

CVSS 6.8 · Medium EPSS 0.30% · P20

Possible ATT&CK Techniques 1 AI

T1110.001 · Password Guessing
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I. Basic Information for CVE-2025-41692

Vulnerability Information
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Vulnerability Title
Weak/Predictable root Password
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有不充分计算复杂性的口令哈希
Source: CVE Program / CVE List V5
Vulnerability Title
PHOENIX CONTACT FL SWITCH 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHOENIX CONTACT FL SWITCH是德国菲尼克斯电气（PHOENIX CONTACT）公司的一款工业级以太网交换机。 PHOENIX CONTACT FL SWITCH 3.50之前版本存在安全漏洞，该漏洞源于弱密码生成算法，可能导致暴力破解攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Phoenix Contact FL SWITCH 2005 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2008 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2016 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2105 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2108 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2116 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2204-2TC-2SFX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2205 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2206-2FX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2206-2FX SM 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2206-2FX SM ST 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2206-2FX ST 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2206-2SFX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2206-2SFX PN 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2206C-2FX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2207-FX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2207-FX SM 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2208 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2208 PN 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2208C 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2212-2TC-2SFX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2214-2FX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2214-2FX SM 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2214-2SFX 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2214-2SFX PN 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2216 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2216 PN 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2304-2GC-2SFP 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2306-2SFP 0.0.0 ~ 3.50 -
Phoenix Contact FL SWITCH 2306-2SFP PN 0.0.0 ~ 3.50 -

II. Public POCs for CVE-2025-41692

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2025-41692

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Other References for CVE-2025-41692 (1)

Same Patch Batch · Phoenix Contact · 2025-12-09 · 14 CVEs total

CVE-2025-41695 7.1 HIGH Reflected XSS vulnerability in dyn_conn.php
CVE-2025-41749 7.1 HIGH Reflected XSS vulnerability in port_util.php
CVE-2025-41751 7.1 HIGH Reflected XSS vulnerability in pxc_portCntr.php
CVE-2025-41746 7.1 HIGH Reflected XSS vulnerability in pxc_portSecCfg.php
CVE-2025-41745 7.1 HIGH Reflected XSS vulnerability in pxc_portCntr2.php
CVE-2025-41750 7.1 HIGH Reflected XSS vulnerability in pxc_PortCfg.php
CVE-2025-41747 7.1 HIGH Reflected XSS vulnerability in pxc_vlanIntfCfg.php
CVE-2025-41748 7.1 HIGH Reflected XSS vulnerability in pxc_Dot1xCfg.php
CVE-2025-41752 7.1 HIGH Reflected XSS vulnerability in pxc_portSfp.php
CVE-2025-41697 6.8 MEDIUM Shell access to UART Console
CVE-2025-41694 6.5 MEDIUM Authenticated Denial-of-Service via Webshell
CVE-2025-41696 4.6 MEDIUM Hardcoded User Password
CVE-2025-41693 4.3 MEDIUM Authenticated Denial-of-Service via SSH

IV. Related Vulnerabilities

Same product: FL SWITCH 2005
Same vendor: Phoenix Contact
Same weakness: CWE-916

V. Comments for CVE-2025-41692

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