CVE-2026-2615: high-severity vulnerability in Wavlink WL-NU516U1
Wavlink WL-NU516U1 firewall.cgi singlePortForwardDelete command injection
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
26Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 13%
A flaw has been found in Wavlink WL-NU516U1 up to 20251208. The affected element is the function singlePortForwardDelete of the file /cgi-bin/firewall.cgi. Executing a manipulation of the argument del_flag can lead to command injection. The attack may be launched remotely. The exploit has been published and may 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:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Wavlink · WL-NU516U1Related CVEs — Wavlink WL-NU516U1
In the same product, most dangerous first.
CVE-2026-3662MEDIUMWavlink WL-NU516U1 adm.cgi usb_p910 command injectionEPSS 20.3%CVE-2026-3661MEDIUMWavlink WL-NU516U1 adm.cgi ota_new_upgrade command injectionEPSS 19.7%CVE-2025-10775MEDIUMWavlink WL-NU516U1 login.cgi sub_4012A0 os command injectionEPSS 16.7%CVE-2026-3612HIGHWavlink WL-NU516U1 OTA Online Upgrade adm.cgi sub_405AF4 command injectionEPSS 14.3%CVE-2025-9149MEDIUMWavlink WL-NU516U1 wireless.cgi sub_4032E4 command injectionEPSS 5.2%CVE-2026-18587HIGHWavlink WL-NU516U1 Config Import os command injectionEPSS 2.0%