Vulnerability · Published May 9, 2026 · Assigned by VulDB

CVE-2026-8188Wavlink NU516U1 adm.cgi change_wifi_password os command injection

Medium 6.3

In plain English

A medium-severity OS command injection in NU516U1 from Wavlink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 8.9% (higher than 95% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)8.9%top 4.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Wavlink NU516U1 M16U1_V240425. Affected is the function change_wifi_password of the file /cgi-bin/adm.cgi. The manipulation of the argument wl_channel/wl_Pass/EncrypType leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

Affected products (as reported)

Vendor	Product	Versions
Wavlink	NU516U1	M16U1_V240425

Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-362340 | Wavlink NU516U1 adm.cgi change_wifi_password os command injection vdb-entry, technical-description
VDB-362340 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #800727 | Wavlink NU516U1 M16U1_V240425 Command Injection third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/Wavlink/vuln_1/1.md exploit