What’s Vulnerable › Vulnerabilities

CVE-2026-58457: Shenzhen Aitemi M300 MT02 Unauthenticated OS Command Injection via protocol.csp

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-01 · updated 2026-10-25
• Weakness: CWE-78

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.

Affected products

• Shenzhen Aitemi E Commerce Co. Ltd. M300 Wi-Fi Repeater: all versions

References

• https://github.com/IEATASICS/m300-repeater-bugs#
• https://www.aliexpress.us/item/3256806767641280.html
• https://www.vulncheck.com/advisories/shenzhen-aitemi-m300-mt02-unauthenticated-os-command-injection-via-protocol-csp

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