OS Command Injection Vulnerability in WAVLINK WN536AX6-A Router
CVE-2026-120276

10CRITICAL

Key Information:

Vendor

Wavlink

Status
Wn536ax6-a
Vendor
CVE Published:
1 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-120276?

A vulnerability has been discovered in the WAVLINK WN536AX6-A router that affects its web management interface. This flaw resides in the function sub_416760 of the /bin/ioos component and allows for argument manipulation through the group_name parameter, leading to os command injection. Potential attackers can exploit this vulnerability remotely, posing significant risks to the security of affected systems. An exploit for this vulnerability has been made publicly available, heightening the urgency for users and administrators to apply necessary mitigations.

Affected Version(s)

WN536AX6-A V260507_2.0.0

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-2026-120276 - Proof of Concept

References

https://vuldb.com/vuln/429620
vdb-entrytechnical-description
https://vuldb.com/vuln/429620/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-120276
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
.