CVE-2025-41696
4.6 · MEDIUMOverview
CVE-2025-41696 is a medium-severity vulnerability affecting phoenixcontact fl_switch_2708_pn_firmware. It was published on December 9, 2025 and has a CVSS 3.1 base score of 4.6 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
An attacker can use an undocumented UART port on the PCB as a side-channel with the user hardcoded credentials obtained from CVE-2025-41692 to gain read access to parts of the filesystem of the device.
Remediation
Check the references section for vendor advisories and patches from phoenixcontact. Update fl_switch_2708_pn_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| phoenixcontact | fl_switch_2708_pn_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2708_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2608_pn_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2608_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2516_pn_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2516_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2514-2sfp_pn_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2514-2sfp_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2512-2gc-2sfp_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2508_pn_firmware | >= 0, < 3.50 | Affected |
References
Frequently Asked Questions
What is CVE-2025-41696?
CVE-2025-41696 is a medium-severity vulnerability affecting phoenixcontact fl_switch_2708_pn_firmware. It was published on December 9, 2025 and has a CVSS 3.1 base score of 4.6 (MEDIUM).
How severe is CVE-2025-41696?
This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-41696?
Check the references section for vendor advisories and patches from phoenixcontact. Update fl_switch_2708_pn_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-41696?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-41696 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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