How severe is CVE-2025-41749?

CVE-2025-41749 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-41749 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-41749?

CVE-2025-41749 primarily affects Phoenixcontact Fl Switch 2008f Firmware. In total, 69 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-41749?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-41749 have an EU (EUVD) identifier?

Yes. CVE-2025-41749 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201899.

When was CVE-2025-41749 published?

CVE-2025-41749 was published on 2025-12-09 and last updated on 2026-06-17.

CVE-2025-41749

CVE-2025-41749 is a high-severity vulnerability in Phoenixcontact Fl Switch 2008f Firmware with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201899
Weakness: CWE-79
Affected product: Phoenixcontact Fl Switch 2008f Firmware
Published: 2025-12-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-41749?: 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.
How severe is CVE-2025-41749?: CVE-2025-41749 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-41749 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-41749?: CVE-2025-41749 primarily affects Phoenixcontact Fl Switch 2008f Firmware. In total, 69 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-41749?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-41749 have an EU (EUVD) identifier?: Yes. CVE-2025-41749 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201899.
When was CVE-2025-41749 published?: CVE-2025-41749 was published on 2025-12-09 and last updated on 2026-06-17.

References

https://certvde.com/de/advisories/VDE-2025-071

Affected products (69)

cpe:2.3:o:phoenixcontact:fl_switch_2008f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2016_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2105_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2108_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2116_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2204-2tc-2sfx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2205_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_sm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_sm_st_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2206-2fx_st_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2206-2sfx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2206-2sfx_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2206c-2fx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2207-fx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2207-fx_sm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2208_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2208_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2208c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2212-2tc-2sfx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2214-2fx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2214-2fx_sm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2214-2sfx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2214-2sfx_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2216_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2216_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2303-8sp1:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2304-2gc-2sfp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2306-2sfp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2306-2sfp_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2308_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2308_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2312-2gc-2sfp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2314-2sfp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2314-2sfp_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2316_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2316\/k1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2316_pn_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2404-2tc-2sfx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:fl_switch_2406-2sfx_firmware:*:*:*:*:*:*:*:*

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