TI-2026-42066 Aliases CVE-2026-58457 GHSA-gfhx-3hfg-x9hv

Shenzhen Aitemi M300 MT02 Unauthenticated OS Command Injection via protocol.csp

HIGH 81CWE-78Published 2026-07-01 · Updated 2026-07-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.02939 87th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Shenzhen Aitemi E Commerce Co. Ltd.	M300 Wi-Fi Repeater	all versions	—	No fix listed	CNA

M300 Wi-Fi Repeater VendorShenzhen Aitemi E Commerce Co. Ltd. Affected all versions Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-58457
2026-10-03 Alias added: GHSA-gfhx-3hfg-x9hv

References

Exploit 1

Researcher Disclosure

Other 1

Product Webpage

TI-2025-24306 Shenzhen Aitemi M300 Wi-Fi Repeater OS Command Injection via Time Parameter CVSS 4.0CRITICAL 9.4
TI-2025-24304 Shenzhen Aitemi M300 Wi-Fi Repeater PPPoE Username Command Injection CVSS 4.0CRITICAL 9.4
TI-2025-24303 Shenzhen Aitemi M300 Wi-Fi Repeater OS Command Injection via WPA2 Key CVSS 4.0CRITICAL 9.4
TI-2025-24302 Shenzhen Aitemi M300 Wi-Fi Repeater OS Command Injection via WISP SSID CVSS 4.0CRITICAL 9.4
TI-2025-24305 Shenzhen Aitemi M300 Wi-Fi Repeater PPPoE Password Command Injection CVSS 4.0CRITICAL 9.4
TI-2025-24301 Shenzhen Aitemi M300 Wi-Fi Repeater OS Command Injection via SSID CVSS 4.0CRITICAL 9.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences