CVE-2025-3759: Missing Authentication for Changing Device Configuration in WF2220

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 1 Oct 2026. It cites 1 public report, the first from 1 Oct 2026.

• previdian.com

How likely is exploitation in the next 30 days?

0.3%

EPSS score, percentile 17.7 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

8.7 High

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• 1.2.31706

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 30 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

Missing Authentication for Changing Device Configuration in WF2220

Endpoint /cgi-bin-igd/netcore_set.cgi which is used for changing device configuration is accessible without authentication. This poses a significant security threat allowing for e.g: administrator account hijacking or AP password changing. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline

Known exploited Netis vulnerabilities

• CVE-2019-19356: Netis WF2419 Devices Remote Code Execution Vulnerability (added 3 Nov 2021)