Is CVE-2026-9380 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-9380 being exploited in the wild.

How severe is CVE-2026-9380?

High severity, with a CVSS score of 8.8, published 24 May 2026.

Is there a fix for CVE-2026-9380?

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-2026-9380 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2026-9380?

Check whether you run Edimax BR-6675nD 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-2026-9380: Edimax BR-6675nD buffer overflow in formL2TPSetup

CVE-2026-9380 · Severity: high · CVSS 8.8 · Published 2026-05-24

A security vulnerability exists in the Edimax BR-6675nD wireless router, a device used to provide internet connectivity and networking for homes and small offices. An attacker can exploit this flaw to crash the device or potentially take full control of it by sending a specially crafted request to the router's configuration interface. This could lead to a total loss of internet availability and the exposure of network traffic.

Technologies: Edimax BR-6675nD. Vendors: Edimax.

Quick answers

Is CVE-2026-9380 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-9380 being exploited in the wild.
How severe is CVE-2026-9380?: High severity, with a CVSS score of 8.8, published 24 May 2026.
Which products and versions are affected?: Edimax BR-6675nD 1.12.
Is there a fix for CVE-2026-9380?: 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-2026-9380 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2026-9380?: Check whether you run Edimax BR-6675nD 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 BR-6675nD firmware version 1.12. The flaw is located within the 'formL2TPSetup' function in the '/goform/formL2TPSetup' component, which handles POST requests. By sending a malicious POST request with an oversized 'L2TPUserName' argument, a remote attacker with low privileges can trigger the overflow. This can lead to arbitrary code execution or a denial of service (DoS). As of the advisory date, the vendor has not responded to disclosure attempts, and no official patch is available.

Affected products

Edimax BR-6675nD 1.12

Timeline

2026-05-24: disclosed: Public disclosure of the vulnerability and exploit details.
2026-05-24: advisory: CVE-2026-9380 published.

References

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