CVE-2026-4164criticalCWE-74CWE-77

CVE-2026-4164: critical vulnerability in Wavlink WL-WN578W2

Wavlink WL-WN578W2 POST Request wireless.cgi GuestWifi command injection

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48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.3epss 2.1%
A flaw has been found in Wavlink WL-WN578W2 221110. Impacted is the function Delete_Mac_list/SetName/GuestWifi of the file /cgi-bin/wireless.cgi of the component POST Request Handler. Executing a manipulation can lead to command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. It is recommended to upgrade the affected component.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Wavlink · WL-WN578W2
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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