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CVE-2026-4543mediumCWE-74CWE-77

Wavlink WL-WN578W2 POST Request firewall.cgi command injection

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 4.0%
exploitation probability
4.0%top 10% of all CVEs
observed exploitation
nono source reports it
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-WN578W2