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

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, Dlink Di-8003 Firmware. 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

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