Risk Letters

Exploited vulnerability

CVE-2025-3759

TLP:CLEAR

Missing Authentication for Critical Function

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.

Facts

  • Vendor: Netis Systems
  • Product: WF2220
  • EPSS (probability of exploitation within 30 days): 0.3 %
  • First known exploitation: 1 October 2026
  • First seen by Risk Letters: 1 October 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD