Command Injection Vulnerability in Wavlink WL-WN570HA1 Router
CVE-2026-7690

5.3MEDIUM

Key Information:

Vendor

Wavlink

Status
Wl-wn570ha1
Vendor
CVE Published:
3 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7690?

A command injection vulnerability exists in the Wavlink WL-WN570HA1 router's set_sys_adm function within the /cgi-bin/adm.cgi file. This flaw arises from improper handling of the Username argument, making the device susceptible to remote attacks. The exploit has been publicly disclosed, and users are urged to be cautious as it could lead to unauthorized system commands being executed. Wavlink has taken action by removing the affected firmware version R70HA1 V1410_221110 from their website, reinforcing their commitment to device security. Notably, 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-2026-7690 - Proof of Concept

References

https://vuldb.com/vuln/360860
vdb-entrytechnical-description
https://vuldb.com/vuln/360860/cti
signaturepermissions-required
https://vuldb.com/submit/807805
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
.