Which products and versions are affected by CVE-2026-9400?

Affected: BR-6675nD (Edimax). The full list is in the CVE brief.

Is CVE-2026-9400 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-9400 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-9400?

Public exploit code is available.

Is there a fix for CVE-2026-9400?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2026-9400 be patched?

Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

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Vulnerability Intelligence

CVE-2026-9400

LowPublic exploit

Edimax BR-6675nD POST Request formUSBStorage command injection

Published May 24, 2026 · Updated Jul 23, 2026 · Also known as EUVD-2026-31603, GHSA-53r7-38m4-hpmp

Key Facts

Routine patching

CVE-2026-9400 is a low-severity vulnerability (CVSS 2.1 v4) affecting BR-6675nD (Edimax).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 2.4% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

CVSS v4

2.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS (30-day exploit likelihood)

2.4%

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2026-9400 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

A flaw has been found in Edimax BR-6675nD 1.12. This issue affects the function formUSBStorage of the file /goform/formUSBStorage of the component POST Request Handler. Executing a manipulation of the argument sub_dir can lead to command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
BR-6675nDEdimax	See advisory	n/a

Timeline

Publicly disclosed
May 24, 2026
Last updated
Jul 23, 2026

Weakness Type

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

References

FAQ

Common Questions.

A flaw has been found in Edimax BR-6675nD 1.12.
Affected: BR-6675nD (Edimax). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

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