PT-2026-54917 · Shenzhen Aitemi · M300 Wi-Fi Repeater

Conrad Franke + 1 · Published 2026-07-01 · Updated 2026-07-06 · CVE-2026-58457

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02) (affected versions not specified)

Description An unauthenticated OS command injection exists in the commuos web backend. Network-adjacent attackers can execute arbitrary shell commands by injecting unsanitized input through the smacfilter conf handler. By appending semicolon-delimited payloads to the name, enable, or mac GET parameters, attackers can manipulate the sprintf() function used to build uci shell commands executed via doSystemCmdComlib(), resulting in full root-level control of the device.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-58457

Affected Products

M300 Wi-Fi Repeater

References · 9

• 🔥 https://github.com/IEATASICS/m300-repeater-bugs# · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-58457 · Security Note
• https://t.me/cveNotify/184144 · Telegram Post
• https://twitter.com/OrizonCyber/status/2072492983597810135 · Twitter Post
• https://twitter.com/CVEnew/status/2072441330333094242 · Twitter Post
• https://aliexpress.us/item/3256806767641280.html · Note
• https://vulncheck.com/advisories/shenzhen-aitemi-m300-mt02-unauthenticated-os-command-injection-via-protocol-csp · Note
• https://twitter.com/infoflowcloud/status/2072442966128345153 · Twitter Post
• https://twitter.com/DFIR_Lab/status/2074157767703556434 · Twitter Post