CVE-2026-19348

CRITICAL 9.8

Shenzhen Aitemi M300 Wi-Fi Repeater protocol.csp sprintf command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	shenzhen aitemi
Product	m300 wi-fi repeater
Published	Aug 9, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Shenzhen Aitemi / M300 Wi-Fi Repeater

r0-ea7890a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/387184 vuldb.com: https://vuldb.com/vuln/387184/cti vuldb.com: https://vuldb.com/cve/CVE-2026-19348 vuldb.com: https://vuldb.com/submit/865682 vuldb.com: https://vuldb.com/submit/865683 vuldb.com: https://vuldb.com/submit/865684 github.com: https://github.com/IEATASICS/m300-repeater-bugs

Credits

🔍 metermult (VulDB User)