Command Injection Vulnerability in Shenzhen Aitemi M300 Wi-Fi Repeater
CVE-2026-19348

9.3CRITICAL

Key Information:

Vendor

Shenzhen Aitemi

Status
M300 Wi-fi Repeater
Vendor
CVE Published:
9 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-19348?

A security flaw identified in the Shenzhen Aitemi M300 Wi-Fi Repeater allows for a command injection via the sprintf function in the protocol.csp file. Attackers can manipulate parameters such as enable, name, or mac, leading to remote command execution. This vulnerability has been made public and poses a significant risk, making it critical for users to apply necessary security measures to protect their devices.

Affected Version(s)

M300 Wi-Fi Repeater r0-ea7890a

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-2026-19348 - Proof of Concept

References

https://vuldb.com/vuln/387184
vdb-entrytechnical-description
https://vuldb.com/vuln/387184/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19348
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

metermult (VulDB User)
.