CVE-2026-19348: critical vulnerability in Shenzhen Aitemi M300 Wi-Fi Repeater
Shenzhen Aitemi M300 Wi-Fi Repeater protocol.csp sprintf command injection
Published · Updated
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48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 3.6%
A security flaw has been discovered in Shenzhen Aitemi M300 Wi-Fi Repeater r0-ea7890a. Impacted is the function sprintf of the file /protocol.csp?fname=net&opt=smacfilter_conf&function=set&act=add&name=test&enable=1. Performing a manipulation of the argument enable/name/mac results in command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.
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/E:P
Affected products
Shenzhen Aitemi · M300 Wi-Fi Repeaterpublic PoCs found — 1
cve_referencegithub.com/IEATASICS/m300-repeater-bugsunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.