CVE-2026-9400Public exploitNetwork attack vector

Authenticated command execution via unsanitized sub_dir

Published May 24, 2026 · Updated May 24, 2026

Command injection in Edimax BR-6675nD 1.12 allows remote authenticated users to execute system commands via crafted USB storage requests. The formUSBStorage handler at /goform/formUSBStorage incorporates the sub_dir POST value into a system command without neutralizing shell metacharacters. Low-privilege access to the router's web management interface is required; injected commands can read or alter data and interrupt router operation.

CVSS severity6.3
Medium
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Edimax BR-6675nD 1.12 allows remote authenticated users to execute system commands via crafted USB storage requests. The formUSBStorage handler at /goform/formUSBStorage incorporates the sub_dir POST value into a system command without neutralizing shell metacharacters. Low-privilege access to the router's web management interface is required; injected commands can read or alter data and interrupt router operation.

The record

CVE
CVE-2026-9400
Published
May 24, 2026
Updated
May 24, 2026
Vendor
Edimax Technology Co., Ltd.
Product
BR-6675nD
Classifications
CWE-74, CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 24, 2026CVE publishedPublication date reported by the CVE source.
  2. May 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Edimax Technology Co., Ltd. · BR-6675nDversion=1.12

Published CVSS scores

2.1VulDBCVSS: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
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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