{"cvss":9.3,"datePublished":"2026-09-04T00:00:00Z","dateUpdated":"2026-09-04T00:00:00Z","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.","dueDate":"","id":"CVE-2026-58457","kev_catalogs":["vulncheck"],"knownRansomwareCampaignUse":"Unknown","product":"M300 Wi-Fi Repeater","requiredAction":"Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.","severity":"CRITICAL","source":"vulncheck_kev","title":"  Improper Neutralization of Special Elements used in an OS Command","vendor":"Shenzhen Aitemi E Commerce Co. Ltd."}