RCE in Shenzhen Aitemi M300 Wi-Fi Repeater
CVE-2026-19348
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Shenzhen Aitemi M300 Wi-Fi Repeater — versions r0-ea7890a
Weakness classification (CWE)
References
- vuldb.com/vuln/387184 (technical-description, vdb-entry)
- vuldb.com/vuln/387184/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-19348 (third-party-advisory)
- vuldb.com/submit/865682 (third-party-advisory)
- vuldb.com/submit/865683 (third-party-advisory)
- vuldb.com/submit/865684 (third-party-advisory)
- github.com/IEATASICS/m300-repeater-bugs (exploit)
Frequently asked questions
- What is CVE-2026-19348?
- CVE-2026-19348 is a critical-severity vulnerability in Shenzhen Aitemi M300 Wi-Fi Repeater, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2026-08-09.
- How severe is CVE-2026-19348?
- Critical severity. CVSS v3 base score is 9.8 out of 10.