CVE-2026-4164CWE-74CWE-77

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

Critical · published March 15, 2026

CVSS v4.0
9.3
EPSS
4%
Percentile
89.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
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
EPSS
0.03706 · 89.7th percentile
Weaknesses
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'); CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-03-15T03:02Z
EPSS history
Timeline
  • 15 MAR 03:02Z
    Wavlink WL-WN578W2 POST Request wireless.cgi GuestWifi command injection
    cvelistv5