OS Command Injection Vulnerability in Wavlink NU516U1 Wireless Device
CVE-2026-8228

5.3MEDIUM

Key Information:

Vendor

Wavlink

Status
Nu516u1
Vendor
CVE Published:
10 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8228?

A vulnerability has been identified in the Wavlink NU516U1 device within the wireless.cgi file, specifically in the advance function. This vulnerability allows for remote exploitation through OS command injection by manipulating the wlan_conf/Channel/skiplist/ieee_80211h argument. Once exploited, the attacker can potentially execute arbitrary commands on the underlying operating system. This security flaw was disclosed publicly and the vendor was notified beforehand.

Affected Version(s)

NU516U1 240425

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8228 - Proof of Concept

References

https://vuldb.com/vuln/362445
vdb-entrytechnical-description
https://vuldb.com/vuln/362445/cti
signaturepermissions-required
https://vuldb.com/submit/800733
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ziyue Xie (VulDB User)
VulDB CNA Team
.