RCE in Edimax Br-6478ac
CVE-2026-9441
A security flaw has been discovered in Edimax BR-6478AC 1.23. Affected by this issue is the function formiNICbasic of the file /goform/formiNICbasic of the component POST Request Handler. Performing a manipulation of the argument rootAPmac results in command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.024 (83.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.117 · newest: 0.024 · change: -0.093
Affected products
- Edimax Br-6478ac — versions 1.23
Weakness classification (CWE)
References
- vuldb.com/vuln/365422 (technical-description, vdb-entry)
- vuldb.com/vuln/365422/cti (signature, permissions-required)
- vuldb.com/submit/818450 (third-party-advisory)
- lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formiNICbasic-34b53a41781f80… (exploit)
Frequently asked questions
- What is CVE-2026-9441?
- CVE-2026-9441 is a medium-severity vulnerability in Edimax Br-6478ac, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-05-25.
- How severe is CVE-2026-9441?
- Medium severity. CVSS v3 base score is 6.3 out of 10.