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Findings

Vulnerability · CVE-2025-3759

Missing Authentication for Critical Function

Published May 8, 2025 · corrected/updated Oct 1, 2026 · Netis Systems WF2220 · evidence confidence very high

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.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2025-3759 is a high public vulnerability record for Netis Systems WF2220. CISA lists it as known exploited. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether Netis Systems WF2220 is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: Netis Systems WF2220; Netis Systems WF2220 1.2.31706 (1.2.31706). Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 8.7, EPSS 26.0%. CISA lists it as known exploited. Sources contributing to this record: cve_org, epss, euvd, vulncheck_kev. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Confirmed in CISA KEV since Oct 1, 2026. Listed in CISA KEV and VulnCheck KEV.

  • Patch and remediation

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 1, 2026 · VulnCheck KEV

    Detected

    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.

  2. Oct 1, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected

  • vendor Netis Systems WF2220version unspecified
  • vendor Netis Systems WF2220 1.2.317061.2.31706

Sources

  • CVE.orgVulnerability recordCVE-2025-3759

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-3759

    30-day exploitation probability 0.3%

    first.org
  • EUVDVulnerability recordEUVD-2025-13994

    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 thi

    euvd.enisa.europa.eu
  • VulnCheck KEVConfirmed exploitationCVE-2025-3759

    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 thi

    vulncheck.com

References