Command Injection Vulnerability in Totolink LR350 Router
CVE-2026-1149

5.3MEDIUM

Key Information:

Vendor

Totolink
Status
Lr350
Vendor
CVE Published:
19 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1149?

A command injection vulnerability has been identified in the Totolink LR350 router, specifically in the setDiagnosisCfg function located in the /cgi-bin/cstecgi.cgi file. The issue arises from improper validation of the 'ip' argument, enabling attackers to inject arbitrary commands. This flaw can be exploited remotely, presenting a significant risk to users whose devices are running the affected firmware version. As the vulnerability details and exploitation methods are publicly available, immediate attention and mitigation strategies are critical for affected users.

Affected Version(s)

LR350 9.3.5u.6369_B20220309

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-2026-1149 - Proof of Concept

References

https://vuldb.com/?id.341742
vdb-entrytechnical-description
https://vuldb.com/?ctiid.341742
signaturepermissions-required
https://vuldb.com/?submit.735695
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_mie (VulDB User)
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