CVE-2025-41749
7.1 · HIGHOverview
CVE-2025-41749 is a high-severity vulnerability affecting phoenixcontact fl_switch_2008f_firmware. It was published on December 9, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An XSS vulnerability in port_util.php can be used by an unauthenticated remote attacker to trick an authenticated user to click on the link provided by the attacker in order to change parameters available via web based management (WBM). The vulnerability does not provide access to system-level resources such as operating system internals or privileged functions. Access is limited to device configuration parameters that are available in the context of the web application. The session cookie is secured by the httpOnly Flag. Therefore an attacker is not able to take over the session of an authenticated user.
Remediation
Check the references section for vendor advisories and patches from phoenixcontact. Update fl_switch_2008f_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_2008f_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2016_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2105_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2108_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2116_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2204-2tc-2sfx_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2205_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2206-2fx_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2206-2fx_sm_firmware | >= 0, < 3.50 | Affected |
| phoenixcontact | fl_switch_2206-2fx_sm_st_firmware | >= 0, < 3.50 | Affected |
References
Frequently Asked Questions
What is CVE-2025-41749?
CVE-2025-41749 is a high-severity vulnerability affecting phoenixcontact fl_switch_2008f_firmware. It was published on December 9, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2025-41749?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-41749?
Check the references section for vendor advisories and patches from phoenixcontact. Update fl_switch_2008f_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-2025-41749?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-41749 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.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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