Command Injection Vulnerability in Tenda G103 Product
CVE-2026-5338

5.1MEDIUM

Key Information:

Vendor

Tenda
Status
G103
Vendor
CVE Published:
2 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5338?

A security flaw has been identified in the Tenda G103's version 1.0.0.5, specifically within the action_set_system_settings function of the system.lua file. This vulnerability allows an attacker to manipulate the 'lanIp' argument, potentially leading to command injection. As this issue could be exploited remotely, it is essential for users to apply the necessary security updates and take preventative measures to protect their systems from unauthorized access. Public disclosure of the exploit raises the urgency for immediate attention and remediation.

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Affected Version(s)

G103 1.0.0.5

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-2026-5338 - Proof of Concept

References

https://vuldb.com/vuln/354669
vdb-entrytechnical-description
https://vuldb.com/vuln/354669/cti
signaturepermissions-required
https://vuldb.com/submit/781131
third-party-advisory

CVSS V4

Score:
5.1
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

n0ps1ed (VulDB User)
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