CVE-2026-6012: D-Link DIR-513 buffer overflow in formSetPassword

CVE-2026-6012 · Severity: high · CVSS 8.8 · Published 2026-04-10

A security vulnerability exists in the D-Link DIR-513 router, a device used to provide wireless internet connectivity. An attacker can exploit this flaw to cause a system crash or potentially take full control of the device by sending a specially crafted web request. Because this product is no longer supported by the manufacturer, no official security updates will be released, leaving affected devices permanently vulnerable.

Technologies: Dlink Dir-513, Dlink Dir-513 Firmware. Vendors: Dlink.

Quick answers

Is CVE-2026-6012 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-6012 being exploited in the wild.
How severe is CVE-2026-6012?
High severity, with a CVSS score of 8.8, published 10 April 2026.
Which products and versions are affected?
D-Link DIR-513 1.10.
Is there a fix for CVE-2026-6012?
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-2026-6012 attacked?
It is attacked over the network, in device firmware.
Am I affected by CVE-2026-6012?
Check whether you run Dlink Dir-513 or Dlink Dir-513 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 vulnerability exists in the D-Link DIR-513 firmware version 1.10. The flaw is located within the 'formSetPassword' function in the '/goform/formSetPassword' file, which serves as a POST request handler. By manipulating the 'curTime' argument in a remote POST request, an authenticated attacker can overflow a memory buffer. This can lead to arbitrary code execution or a device crash. As the product is end-of-life (EOL), no patch is available, and public exploit code has been disclosed.

Affected products

  • D-Link DIR-513 1.10

Timeline

  • 2026-04-10: disclosed: Vulnerability disclosed and CVE assigned
  • 2026-04-10: advisory: Initial advisory published by VulDB

References

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