CVE-2025-50653: D-Link DI-8003 buffer overflow in /time_group.asp

CVE-2025-50653 · Severity: high · CVSS 7.5 · Published 2026-04-08

A buffer overflow vulnerability exists in the D-Link DI-8003 enterprise router. This flaw allows a remote attacker to crash the device, leading to a complete loss of network connectivity and service availability. Because this product has reached its end-of-life (EOL) status, the manufacturer will not be releasing a security patch, and users are advised to replace the hardware.

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

Quick answers

Is CVE-2025-50653 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-50653 being exploited in the wild.
How severe is CVE-2025-50653?
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-2025-50653?
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-2025-50653 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2025-50653?
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 firmware version 16.07.26A1. The vulnerability is located within the /time_group.asp endpoint due to improper length validation of the 'name' and 'mem' parameters. A remote, unauthenticated attacker can exploit this by sending a specially crafted HTTP request to the web management interface. Successful exploitation results in a crash of the affected service or device (Denial of Service). D-Link has stated that this model is End-of-Life (EOL) and no firmware updates will be provided to address this issue.

Affected products

  • D-Link DI-8003 16.07.26A1

Timeline

  • 2026-04-08: disclosed: Initial disclosure of CVE-2025-50653
  • 2026-04-15: advisory: D-Link published security announcement SAP10505 confirming EOL status

References

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