CVE-2026-4543: medium-severity vulnerability in Wavlink WL-WN578W2
Wavlink WL-WN578W2 POST Request firewall.cgi command injection
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 5.8%
A vulnerability was found in Wavlink WL-WN578W2 221110. The impacted element is an unknown function of the file /cgi-bin/firewall.cgi of the component POST Request Handler. Performing a manipulation of the argument dmz_flag/del_flag results in command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
Wavlink · WL-WN578W2Related CVEs — Wavlink WL-WN578W2
In the same product, most dangerous first.
CVE-2025-10324MEDIUMWavlink WL-WN578W2 firewall.cgi sub_401C5C command injectionEPSS 6.7%CVE-2025-10323MEDIUMWavlink WL-WN578W2 wizard_rep.shtml sub_409184 command injectionEPSS 6.7%CVE-2025-10325MEDIUMWavlink WL-WN578W2 login.cgi sub_401BA4 command injectionEPSS 5.6%CVE-2025-10358MEDIUMWavlink WL-WN578W2 wireless.cgi sub_404850 os command injectionEPSS 5.2%CVE-2025-10359MEDIUMWavlink WL-WN578W2 wireless.cgi sub_404DBC os command injectionEPSS 5.0%CVE-2026-4164CRITICALWavlink WL-WN578W2 POST Request wireless.cgi GuestWifi command injectionEPSS 2.1%