CVE-2026-58457: critical vulnerability in Shenzhen Aitemi E Commerce Co. Ltd.
Shenzhen Aitemi M300 MT02 Unauthenticated OS Command Injection via protocol.csp
Published · Updated
70Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.
ssvc Actcvss 9.3epss 2.9%
from disclosure to weapon15 days
Published on NVDJul 1
1st PoC+15d
VulnCheck+65d
exploitation probability
2.9%top 13% of all CVEs
observed exploitation
yesVulnCheck
2 public exploit(s)
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Shenzhen Aitemi E Commerce Co. Ltd. · M300 Wi-Fi Repeaterpublic PoCs found — 2
githubgithub.com/J4ck3LSyN-Gen2/CVE-2026-58457★ 2cve_referencegithub.com/IEATASICS/m300-repeater-bugs#unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Shenzhen Aitemi E Commerce Co. Ltd.
In the same product, most dangerous first.
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