# CVE-2025-50671: D-Link DI-8003 buffer overflow in /xwgl_ref.asp

Source: https://junglewise.ai/threats/cve-2025-50671-d-link-di-8003-buffer-overflow-in-xwgl-ref-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-2025-50671 · Severity: high · CVSS 7.5 · Published 2026-04-08

A security vulnerability has been identified in the D-Link DI-8003 enterprise router. An attacker can exploit this flaw by sending a specially crafted web request to the device's management interface. If successful, this could cause the router to crash or become unresponsive, leading to a total loss of internet connectivity and network services for the organization.

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-2025-50671 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-50671 being exploited in the wild.

**How severe is CVE-2025-50671?** 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; D-Link DI-8003.

**Is there a fix for CVE-2025-50671?** 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-2025-50671 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2025-50671?** 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 stack-based buffer overflow (CWE-121) exists in the D-Link DI-8003 router running firmware version 16.07.26A1. The vulnerability is located in the /xwgl_ref.asp endpoint due to improper validation of the length of several HTTP GET parameters, including 'name', 'en', 'user_id', 'shibie_name', 'time', 'act', 'log', and 'rpri'. A remote, unauthenticated attacker can exploit this by sending a crafted request containing excessively long strings in these parameters. Successful exploitation leads to a crash of the affected service, resulting in a denial-of-service (DoS) impact. While the reported impact is limited to availability, buffer overflows of this nature can sometimes be leveraged for remote code execution.

## Affected products

- D-Link DI-8003 firmware 16.07.26A1
- D-Link DI-8003

## Timeline

- 2026-04-08: disclosed
- 2026-04-08: advisory

## 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_bwr.asp](https://junglewise.ai/threats/cve-2025-50670-d-link-di-8003-buffer-overflow-in-xwgl-bwr-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)