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WAVLINK WN579X3-D wapi.cgi port_forward os command injection

Affects WAVLINK WN579X3-D firmware M79X3D.V250402 (M_V250402) through the port_forward function of /cgi-bin/wapi.cgi. No fixed version is listed in the checked facts.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Published
Last modified
Published
Not listed in CISA KEV
22/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub
On X
View the cve.now post

Summary

The WAVLINK WN579X3-D router's web management interface (the wapi.cgi component, port_forward function) is affected. Improper handling of the Name parameter allows an attacker on the network to inject operating system commands, potentially giving them control over the device.

Read the original description

A vulnerability was detected in WAVLINK WN579X3-D V250402. This affects the function port_forward of the file /cgi-bin/wapi.cgi. The manipulation of the argument Name results in os command injection. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure.

What to do

  • Check whether your setup matches what the bug needs.

    Affects WAVLINK WN579X3-D firmware M79X3D.V250402 (M_V250402) Attacker must log in to the device to obtain a valid session cookie
  • Workaround: The checked facts do not include a workaround. Because the flaw requires a valid login session, limiting who can log in to the router's web administration interface reduces exposure until a fix is available.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. Posted on X by cve.now

Affected versions

  • WAVLINK WN579X3-D

    V250402

Evidence 5

  1. Advisory
  2. Advisory
  3. Advisory
  4. Advisory
  5. Exploit

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

FAQ

Questions about CVE-2026-120196

What does this mean?

The port_forward function in the router's web interface passes input into an OS command without proper checks, so a logged-in user can run commands on the device. The advisory says this gives remote code execution with root privileges.Source: github.com

What should I do about it?

The checked facts do not list a fixed firmware version, so no upgrade target can be given from them. Check WAVLINK's support channels for newer firmware for this model.Source: github.com

Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

What if there's no patch?

The checked facts do not include a workaround. Because the flaw requires a valid login session, limiting who can log in to the router's web administration interface reduces exposure until a fix is available.Source: github.com