CVE-2026-4163CWE-74CWE-77

Wavlink WL-WN579A3 POST Request wireless.cgi GuestWifi command injection

Critical · published March 14, 2026

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

A vulnerability was detected in Wavlink WL-WN579A3 220323. This issue affects the function SetName/GuestWifi of the file /cgi-bin/wireless.cgi of the component POST Request Handler. Performing a manipulation results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading the affected component is recommended.

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
2026-03-14T22:32Z
EPSS history
Timeline
  • 14 MAR 22:32Z
    Wavlink WL-WN579A3 POST Request wireless.cgi GuestWifi command injection
    cvelistv5