# CVE-2025-71384: Dbit WIFI4 N300 stack-based buffer overflow in DHCP configuration

Source: https://junglewise.ai/threats/cve-2025-71384-dbit-wifi4-n300-1-0-0-devices-allows-administrators-from-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-06. Updated: 2026-10-06  
License: CC BY 4.0 with a link back

CVE-2025-71384 · Severity: info · Published 2026-10-06

The Dbit WIFI4 N300 is a low-cost residential router that manages network configuration and internet connectivity. A vulnerability in the router's web administration interface allows authenticated administrators on the local Wi-Fi network to execute arbitrary operating system commands by overflowing a buffer in the static DHCP configuration feature. An attacker with Wi-Fi access and admin credentials could gain complete control of the router and the networks it manages.

Vendors: [Dbit](https://junglewise.ai/threats/vendors/dbit).

## Quick answers

**Is CVE-2025-71384 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-71384 being exploited in the wild.

**How severe is CVE-2025-71384?** Informational severity, published 6 October 2026.

**Which products and versions are affected?** Dbit WIFI4 N300 1.0.0.

**Is there a fix for CVE-2025-71384?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-71384 attacked?** It is attacked from the adjacent network, in a network appliance.

**Am I affected by CVE-2025-71384?** Check whether you run Dbit WIFI4 N300 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stack-based buffer overflow exists in the /api/addStaticDHCP endpoint where the comment field does not properly validate input length before copying to a fixed-size stack buffer. The vulnerability requires prior authentication as an administrator and adjacent network access (local Wi-Fi). Successful exploitation allows remote code execution as the root user running the router's web administration daemon.

## Affected products

- Dbit WIFI4 N300 1.0.0

## Timeline

- 2026-10-06: disclosed

## References

- [https://www.klogixsecurity.com/scorpion-labs-blog/anatomy-of-an-iot-exploit-from-hands-on-to-rce-folie-a-deux](https://www.klogixsecurity.com/scorpion-labs-blog/anatomy-of-an-iot-exploit-from-hands-on-to-rce-folie-a-deux)

## Related threats

- [Dbit WIFI4 N300 management interface denial of service via malformed JSON request](https://junglewise.ai/threats/cve-2025-71383-dbit-wifi4-n300-1-0-0-devices-allow-the-management-interface-to)