Vulnerability · Published May 10, 2026 · Assigned by VulDB
CVE-2026-8230Wavlink NU516U1 login.cgi sys_login1 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 8.1% (higher than 95% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)8.1%top 5.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in Wavlink NU516U1 240425. The impacted element is the function sys_login1 of the file /cgi-bin/login.cgi. Executing a manipulation of the argument ipaddr can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.
Affected products (as reported)
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-362447 | Wavlink NU516U1 login.cgi sys_login1 os command injection vdb-entry, technical-description
- VDB-362447 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #800735 | Wavlink NU516U1 M16U1_V240425 Command Injection third-party-advisory
- https://github.com/wudipjq/my_vuln/blob/main/Wavlink/vuln_9/9.md exploit