Command Injection Vulnerability in Wavlink Wireless Router
CVE-2026-7691

5.3MEDIUM

Key Information:

Vendor

Wavlink

Status
Wl-wn570ha1
Vendor
CVE Published:
3 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7691?

A security vulnerability has been identified in the Wavlink WL-WN570HA1 router, particularly in the function set_sys_cmd located in the /cgi-bin/adm.cgi file. This flaw allows attackers to manipulate command arguments for command injection, enabling remote exploits. The issue has been publicly disclosed, prompting Wavlink to proactively remove the affected firmware version from their website. It is important to note that this vulnerability impacts products that are no longer supported by the vendor.

Affected Version(s)

WL-WN570HA1 R70HA1 V1410_221110

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-2026-7691 - Proof of Concept

References

https://vuldb.com/vuln/360861
vdb-entrytechnical-description
https://vuldb.com/vuln/360861/cti
signaturepermissions-required
https://vuldb.com/submit/807806
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

wxhwxhwxh_tutu (VulDB User)
VulDB CNA Team
.