Is CVE-2026-13580 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-13580 being exploited in the wild.

How severe is CVE-2026-13580?

High severity, with a CVSS score of 8.8, published 29 June 2026.

Is there a fix for CVE-2026-13580?

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-2026-13580 attacked?

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

Am I affected by CVE-2026-13580?

Check whether you run Edimax EW-7478APC at an affected version. 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-2026-13580: Edimax EW-7478APC buffer overflow in formQoS POST handler

CVE-2026-13580 · Severity: high · CVSS 8.8 · Published 2026-06-29

A security flaw has been identified in the Edimax EW-7478APC wireless router, a device used to provide internet connectivity and manage network traffic. An attacker can exploit this vulnerability to take control of the device or cause it to crash by sending a specially crafted web request. This could lead to a complete loss of internet service, unauthorized access to the local network, or the interception of data passing through the router.

Technologies: Edimax EW-7478APC. Vendors: Edimax.

Quick answers

Is CVE-2026-13580 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-13580 being exploited in the wild.
How severe is CVE-2026-13580?: High severity, with a CVSS score of 8.8, published 29 June 2026.
Which products and versions are affected?: Edimax EW-7478APC 1.04.
Is there a fix for CVE-2026-13580?: 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-2026-13580 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-13580?: Check whether you run Edimax EW-7478APC at an affected version. 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 Edimax EW-7478APC firmware version 1.04. The flaw is located in the 'formQoS' function within the '/goform/formQoS' endpoint, which serves as a POST request handler. The vulnerability is triggered by insufficient validation of the 'selSSID' argument, allowing an attacker to overwrite memory on the stack. This is a remote, unauthenticated attack vector that can lead to arbitrary code execution or a device crash. While the vendor was notified, no patch has been released, and exploit details are publicly available.

Affected products

Edimax EW-7478APC 1.04

Timeline

2026-06-29: disclosed
2026-06-29: advisory: Public disclosure of the vulnerability and exploit details.

References

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