OS Command Injection Flaw in WAVLINK Router Product
CVE-2026-120344

10CRITICAL

Key Information:

Vendor

Wavlink

Status
Wn551x3-a
Vendor
CVE Published:
2 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-120344?

A vulnerability affecting the WAVLINK WN551X3-A router has been identified where improper handling of the 'group_name' argument in the WireGuard CLI Group Handler can lead to OS command injection. This vulnerability allows remote attackers to execute arbitrary commands on the device by sending specially crafted requests. The details have been made public, and the vendor has been informed of the issue.

Affected Version(s)

WN551X3-A M51X3_V251020-WO-182e965

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-2026-120344 - Proof of Concept

References

https://vuldb.com/vuln/429669
vdb-entrytechnical-description
https://vuldb.com/vuln/429669/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-120344
third-party-advisory

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

shuyi (VulDB User)
VulDB CNA Team
.