CVE-2026-58457

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

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

2.94% chance of exploitation in the next 30 days, 86th percentile

Published

2026-07-01

Updated

2026-07-06

Proof-of-concept exploits (2)

• IEATASICS/m300-repeater-bugs#
• J4ck3LSyN-Gen2/CVE-2026-584572★ · 2026-07-16

References

• CVE Record
• NVD entry

Related

• CVE-2026-19348
• CVE-2025-53770
• CVE-2025-55182
• CVE-2026-13768
• CVE-2026-39047
• CVE-2026-48558