# CVE-2025-50670: D-Link DI-8003 buffer overflow in /xwgl_bwr.asp

Source: https://junglewise.ai/threats/cve-2025-50670-d-link-di-8003-buffer-overflow-in-xwgl-bwr-asp  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-08. Updated: 2026-07-25  
License: CC BY 4.0 with a link back

CVE-2025-50670 · Severity: high · CVSS 7.5 · Published 2026-04-08

A security vulnerability has been identified in the D-Link DI-8003 router, a device typically used for managing internet connectivity in small to medium-sized environments. An attacker can exploit this flaw to crash the device or cause it to become unresponsive by sending a specially crafted web request. This could lead to a complete loss of internet access and network services for all connected users until the device is manually recovered.

Technologies: [Dlink Di-8003](https://junglewise.ai/threats/technologies/di-8003), [Dlink Di-8003 Firmware](https://junglewise.ai/threats/technologies/di-8003-firmware). Vendors: [Dlink](https://junglewise.ai/threats/vendors/dlink).

## Quick answers

**Is CVE-2025-50670 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-50670 being exploited in the wild.

**How severe is CVE-2025-50670?** High severity, with a CVSS score of 7.5, published 8 April 2026.

**Which products and versions are affected?** D-Link DI-8003 firmware 16.07.26A1.

**Is there a fix for CVE-2025-50670?** 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-2025-50670 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2025-50670?** Check whether you run Dlink Di-8003 or Dlink Di-8003 Firmware. 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 classic buffer overflow (CWE-120) exists in the D-Link DI-8003 router running firmware version 16.07.26A1. The vulnerability is located within the /xwgl_bwr.asp endpoint, which fails to properly validate the length of input provided to the 'name', 'qq', and 'time' parameters. An unauthenticated remote attacker can exploit this by sending a crafted HTTP GET request containing excessively long strings in these parameters. Successful exploitation results in a denial-of-service (DoS) condition, impacting the availability of the device. While the current assessment focuses on availability, buffer overflows can sometimes lead to remote code execution depending on the underlying architecture and memory protections.

## Affected products

- D-Link DI-8003 firmware 16.07.26A1

## Timeline

- 2026-04-08: advisory: Initial disclosure by MITRE/NVD

## References

- [https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md](https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md)
- [https://www.dlink.com/en/security-bulletin/](https://www.dlink.com/en/security-bulletin/)

## Related threats

- [D-Link DI-8003 buffer overflow in /webgl.asp](https://junglewise.ai/threats/cve-2025-50673-d-link-di-8003-buffer-overflow-in-webgl-asp)
- [D-Link DI-8003 buffer overflow in /yyxz_dlink.asp](https://junglewise.ai/threats/cve-2025-50672-d-link-di-8003-buffer-overflow-in-yyxz-dlink-asp)
- [D-Link DI-8003 buffer overflow in /xwgl_ref.asp](https://junglewise.ai/threats/cve-2025-50671-d-link-di-8003-buffer-overflow-in-xwgl-ref-asp)
- [D-Link DI-8003 buffer overflow in wan_ping.asp](https://junglewise.ai/threats/cve-2025-50669-d-link-di-8003-buffer-overflow-in-wan-ping-asp)
- [D-Link DI-8003 buffer overflow in /web_list_opt.asp](https://junglewise.ai/threats/cve-2025-50668-d-link-di-8003-buffer-overflow-in-web-list-opt-asp)