CVE-2026-8189
MediumCVSS 6.3Exploitation Probability (EPSS)
Very high risk91th percentile - higher than 91% of all known CVEs
Summary
A vulnerability was found in Wavlink NU516U1 M16U1_V240425. The function wzdrepeater in the file /cgi-bin/adm.cgi is affected by OS command injection via manipulation of arguments wlan_bssid, sel_Automode, or sel_EncrypTyp. The attack can be launched remotely and the exploit has been made public.
Risk Assessment
A remote attacker could execute arbitrary system commands on the device, potentially leading to full compromise of the device and network.
Recommendation
Immediately update the device firmware to the latest version if a patch is available. Otherwise, consider decommissioning the device.
Other vulnerabilities in Wavlink NU516U1
See all- CVE-2026-8230Medium
An OS command injection vulnerability was found in Wavlink NU516U1 240425 in the sys_login1 function of /cgi-bin/login.cgi. Manipulating the ipaddr argument allows remote command execution. The exploit has been published.
- CVE-2026-8229Medium
An OS command injection vulnerability was detected in Wavlink NU516U1 240425 in the WifiBasic function of /cgi-bin/wireless.cgi. Manipulating arguments AuthMethod/EncrypType allows remote command execution. The exploit is publicly available.
- CVE-2026-8228Medium
A security vulnerability has been detected in Wavlink NU516U1 240425. The function advance in the file /cgi-bin/wireless.cgi is affected by OS command injection via manipulation of arguments wlan_conf, Channel, skiplist, or ieee_80211h. The attack can be launched remotely and the exploit has been disclosed.
- CVE-2026-8227Medium
An OS command injection vulnerability was identified in Wavlink NU516U1 240425 in the wzdapMesh function of /cgi-bin/adm.cgi. The attack can be performed remotely. The exploit has been made public.
- CVE-2026-8192Medium
An OS command injection vulnerability was found in Wavlink NU516U1 M16U1_V240425 in the wzdap function of /cgi-bin/adm.cgi. Manipulating arguments EncrypType/wl_Pass allows remote command execution. The exploit has been published.
- CVE-2026-8191Medium
An OS command injection vulnerability was identified in Wavlink NU516U1 M16U1_V240425 in the wifi_region function of /cgi-bin/adm.cgi. Manipulating arguments skiplist1/skiplist2 allows remote command execution. The exploit is publicly available.
- CVE-2026-8190Medium
An OS command injection vulnerability was found in Wavlink NU516U1 M16U1_V240425 in the wan function of /cgi-bin/adm.cgi. Manipulating arguments ppp_username, ppp_passwd, rwan_ip, rwan_mask, rwan_gateway allows remote command execution. The exploit has been disclosed.
- CVE-2026-8188Medium
An OS command injection vulnerability was found in Wavlink NU516U1 M16U1_V240425 in the change_wifi_password function of /cgi-bin/adm.cgi. Manipulating arguments wl_channel, wl_Pass, EncrypType allows remote command execution. The exploit has been disclosed.
Original NVD description (English source)
A vulnerability was found in Wavlink NU516U1 M16U1_V240425. Affected by this vulnerability is the function wzdrepeater of the file /cgi-bin/adm.cgi. The manipulation of the argument wlan_bssid/sel_Automode/sel_EncrypTyp results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.