Unauthenticated OS Command Injection in Shenzhen Aitemi M300 Wi-Fi Repeater
CVE-2026-58457

9.3CRITICAL

Key Information:

Vendor

Shenzhen Aitemi E Commerce Co. Ltd.

Status
M300 Wi-fi Repeater
Vendor
CVE Published:
1 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-58457?

The Shenzhen Aitemi M300 Wi-Fi Repeater, specifically the hardware model MT02, is susceptible to an unauthenticated OS command injection vulnerability. This flaw allows network-adjacent attackers to execute arbitrary shell commands by exploiting unsanitized input through the smacfilter_conf handler in the device's web backend. Attackers can craft specific payloads appended to the GET parameters (name, enable, or mac), which are then improperly handled and passed into commands executed by the device. This breach potentially allows full root-level control, posing significant risks to device integrity and network security.

Affected Version(s)

M300 Wi-Fi Repeater *

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-2026-58457 - Proof of Concept

References

https://github.com/IEATASICS/m300-repeater-bugs#
technical-descriptionexploit
https://www.aliexpress.us/item/3256806767641280.html
product
https://www.vulncheck.com/advisories/shenzhen-aitemi-m300...
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

Conrad Franke
.