CVE-2026-19348: Shenzhen Aitemi M300 Wi-Fi Repeater · Command Injection
Affects Shenzhen Aitemi M300 Wi-Fi RepeaterSource CVE Database V5
Public exploit available · CVSS 9.3 Critical.
Data as of 6 Nov 2026, 23:24 UTC
- EPSS
- 3.5% chance of exploitation in 30 days – higher than 89% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:PExploitation evidence
Disclosed: evidence found.
CVE published 9 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Shenzhen AitemiM300 Wi-Fi Repeater | Affected
| Fixed in– |
CPE configurations (1)
cpe:2.3:a:shenzhen_aitemi:m300_wi-fi_repeater:*:*:*:*:*:*:*:*
AI-suggested
Until an official fix is released, users should consider isolating the device from untrusted networks and monitoring for suspicious activity. No official mitigation or temporary fix has been documented.
Description
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.
References
- vuldb.com/vuln/387184 (opens in a new tab)
- vuldb.com/vuln/387184/cti (opens in a new tab)
- vuldb.com/cve/CVE-2026-19348 (opens in a new tab)
- vuldb.com/submit/865682 (opens in a new tab)
- vuldb.com/submit/865683 (opens in a new tab)
- vuldb.com/submit/865684 (opens in a new tab)
- github.com/IEATASICS/m300-repeater-bugs (opens in a new tab)