CVE-2025-3759

Unauthenticated configuration changes via netcore_set.cgi

Published May 8, 2025 · Updated May 8, 2025

Missing authentication in Netis Systems Co., Ltd. WF2220 1.2.31706 allows remote attackers to alter configuration over an adjacent network. The /cgi-bin-igd/netcore_set.cgi endpoint accepts configuration-changing requests without verifying an authenticated session. Network access to the device is sufficient to replace the administrator or wireless access-point password, enabling administrative takeover or denial of authorized access.

CVSS severity8.7
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authentication in Netis Systems Co., Ltd. WF2220 1.2.31706 allows remote attackers to alter configuration over an adjacent network. The /cgi-bin-igd/netcore_set.cgi endpoint accepts configuration-changing requests without verifying an authenticated session. Network access to the device is sufficient to replace the administrator or wireless access-point password, enabling administrative takeover or denial of authorized access.

The record

CVE
CVE-2025-3759
Published
May 8, 2025
Updated
May 8, 2025
Vendor
Netis Systems Co., Ltd.
Product
WF2220
Classifications
CWE-306, T1098
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2025CVE publishedPublication date reported by the CVE source.
  2. May 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.2.31706

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Netis Systems Co., Ltd. · WF2220version=1.2.31706

Published CVSS scores

8.7CERT.PLCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo