Is CVE-2025-50661 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-50661 being exploited in the wild.

How severe is CVE-2025-50661?

High severity, with a CVSS score of 7.5, published 8 April 2026.

Is there a fix for CVE-2025-50661?

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-2025-50661 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2025-50661?

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.

CVE-2025-50661: D-Link DI-8003 stack buffer overflow in /url_rule.asp

CVE-2025-50661 · Severity: high · CVSS 7.5 · Published 2026-04-08

A security vulnerability exists in the D-Link DI-8003 router, a device used for managing network traffic. An attacker can exploit this flaw to cause the device to crash or become unresponsive, leading to a total loss of internet connectivity and network services. Because this product has reached its end-of-life status, no official security patches will be released, and the manufacturer recommends replacing the hardware.

Technologies: Dlink Di-8003, Dlink Di-8003 Firmware. Vendors: Dlink.

Quick answers

Is CVE-2025-50661 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-50661 being exploited in the wild.
How severe is CVE-2025-50661?: High severity, with a CVSS score of 7.5, published 8 April 2026.
Which products and versions are affected?: D-Link DI-8003 16.07.26A1.
Is there a fix for CVE-2025-50661?: 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-2025-50661 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-50661?: 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 firmware version 16.07.26A1. The vulnerability is located within the /url_rule.asp endpoint due to improper validation of multiple parameters, including 'name', 'en', 'ips', 'u', 'time', 'act', 'rpri', and 'log'. An unauthenticated attacker can trigger the overflow by sending a crafted HTTP GET request containing overly long strings in these parameters. Successful exploitation leads to a denial-of-service (DoS) through a system crash. As the DI-8003 is an End-of-Life (EoL) product, D-Link has stated that no firmware updates will be provided to address this issue.

Affected products

D-Link DI-8003 16.07.26A1

Timeline

2026-04-08: advisory: Initial disclosure by MITRE/NVD
2026-04-15: other: D-Link confirmed product is End-of-Life and will not receive patches

References

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