OS Command Injection Vulnerability in Totolink WA300 Router
CVE-2026-2167

5.3MEDIUM

Key Information:

Vendor

Totolink
Status
Wa300
Vendor
CVE Published:
8 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2167?

An OS command injection vulnerability has been identified in the Totolink WA300 router, specifically within the setAPNetwork function located in /cgi-bin/cstecgi.cgi. This flaw allows an attacker to manipulate the Ipaddr argument, leading to the execution of arbitrary operating system commands. The vulnerability can be exploited remotely, exposing the device to potential threats. As this exploit is now publicly available, it is crucial for users to take immediate steps to secure their devices.

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Affected Version(s)

WA300 5.2cu.7112_B20190227

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-2026-2167 - Proof of Concept

References

https://vuldb.com/?id.344869
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344869
signaturepermissions-required
https://vuldb.com/?submit.752063
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

jiefengliang (VulDB User)
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