CVE-2025-41697— Shell access to UART Console
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，该漏洞源于未记录的UART端口，可能导致获取root访问权限。
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I. Basic Information for CVE-2025-41697
Vulnerability Information
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Vulnerability Title
Shell access to UART Console
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1299
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，该漏洞源于未记录的UART端口，可能导致获取root访问权限。
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
II. Public POCs for CVE-2025-41697
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2025-41697 (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-2025-41692 | 6.8 MEDIUM | Weak/Predictable root Password |
| 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
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CVE-2026-22323
Cross‑Site Request Forgery in Link Aggregation Configuration -
CVE-2026-22322
Stored Cross‑Site Scripting in Link Aggregation Name Handlin -
CVE-2026-22321
Stack-Based Buffer Overflow in CLI Login Username Handling o -
CVE-2026-22320
Stack-Based Buffer Overflow in TFTP File-Transfer Command Ha -
CVE-2026-22319
Stack-Based Buffer Overflow in File Install Parameter Handli
Same weakness: CWE-1299
V. Comments for CVE-2025-41697
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