CVE-2026-58457: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Shenzhen Aitemi E Commerce Co. Ltd. M300 Wi-Fi Repeater
Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02) contains an unauthenticated OS command injection vulnerability that allows network-adjacent attackers to execute arbitrary shell commands by injecting unsanitized input through the smacfilter_conf handler in the commuos web backend. Attackers can append semicolon-delimited payloads to the name, enable, or mac GET parameters, which are passed without sanitization into sprintf() to build uci shell commands executed via doSystemCmdComlib(), granting full root-level control of the device.
AI Analysis
Technical Summary
CVE-2026-58457 describes an OS command injection vulnerability in the Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02). The vulnerability exists because the smacfilter_conf handler in the device's commuos web backend passes unsanitized GET parameters (name, enable, mac) into sprintf() to build uci shell commands executed by doSystemCmdComlib(). Attackers can append semicolon-delimited payloads to these parameters to execute arbitrary shell commands without authentication, resulting in root-level control over the device.
Potential Impact
Successful exploitation grants an unauthenticated, network-adjacent attacker full root-level control of the affected device. This can lead to complete compromise of the Wi-Fi repeater, including unauthorized command execution, device manipulation, and potential pivoting within the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the device's management interface to trusted users only and monitor for suspicious activity related to the smacfilter_conf handler. Avoid exposing the device management interface to untrusted networks.
CVE-2026-58457: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Shenzhen Aitemi E Commerce Co. Ltd. M300 Wi-Fi Repeater
Description
Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02) contains an unauthenticated OS command injection vulnerability that allows network-adjacent attackers to execute arbitrary shell commands by injecting unsanitized input through the smacfilter_conf handler in the commuos web backend. Attackers can append semicolon-delimited payloads to the name, enable, or mac GET parameters, which are passed without sanitization into sprintf() to build uci shell commands executed via doSystemCmdComlib(), granting full root-level control of the device.
CVSS v4.0
Score 9.3critical
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-58457 describes an OS command injection vulnerability in the Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02). The vulnerability exists because the smacfilter_conf handler in the device's commuos web backend passes unsanitized GET parameters (name, enable, mac) into sprintf() to build uci shell commands executed by doSystemCmdComlib(). Attackers can append semicolon-delimited payloads to these parameters to execute arbitrary shell commands without authentication, resulting in root-level control over the device.
Potential Impact
Successful exploitation grants an unauthenticated, network-adjacent attacker full root-level control of the affected device. This can lead to complete compromise of the Wi-Fi repeater, including unauthorized command execution, device manipulation, and potential pivoting within the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the device's management interface to trusted users only and monitor for suspicious activity related to the smacfilter_conf handler. Avoid exposing the device management interface to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-30T20:20:33.789Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a456fd127e9c79719097e71
Added to database: 07/01/2026, 19:51:45 UTC
Last enriched: 07/01/2026, 20:06:27 UTC
Last updated: 07/01/2026, 20:57:51 UTC
Views: 5
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