Is CVE-2026-8775 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-8775 being exploited in the wild.

How severe is CVE-2026-8775?

High severity, with a CVSS score of 8.8, published 18 May 2026.

Is there a fix for CVE-2026-8775?

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-2026-8775 attacked?

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

Am I affected by CVE-2026-8775?

Check whether you run Edimax BR-6428nS 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-2026-8775: Edimax BR-6428NS buffer overflow in formL2TPSetup

CVE-2026-8775 · Severity: high · CVSS 8.8 · Published 2026-05-18

A security vulnerability exists in the Edimax BR-6428NS wireless router, a device used to provide internet connectivity and networking for homes and small offices. An attacker can exploit a flaw in the router's configuration interface to potentially take control of the device or cause it to crash. This could lead to a complete loss of internet service, unauthorized access to network traffic, or a foothold for further attacks on the internal network.

Technologies: Edimax BR-6428nS. Vendors: Edimax.

Quick answers

Is CVE-2026-8775 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-8775 being exploited in the wild.
How severe is CVE-2026-8775?: High severity, with a CVSS score of 8.8, published 18 May 2026.
Which products and versions are affected?: Edimax BR-6428nS 1.10.
Is there a fix for CVE-2026-8775?: 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-2026-8775 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-8775?: Check whether you run Edimax BR-6428nS 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 classic buffer overflow (CWE-120) exists in the Edimax BR-6428NS router version 1.10. The vulnerability is located within the formL2TPSetup function in the /goform/formL2TPSetup component, which handles POST requests for L2TP configuration. By sending a specially crafted POST request with an oversized L2TPUserName argument, a remote authenticated attacker can trigger a memory corruption. This can lead to arbitrary code execution or a system crash (DoS). While the attack requires low-level privileges (PR:L), an exploit has been publicly disclosed. The vendor has reportedly not responded to the disclosure, and no patch is currently confirmed.

Affected products

Edimax BR-6428NS 1.10

Timeline

2026-05-18: advisory: Initial disclosure by VulDB and NVD
2026-05-18: disclosed: Exploit code has been published publicly

References

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