What is CVE-2026-10166?

CVE-2026-10166 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 2026-05-31.

How severe is CVE-2026-10166?

Medium severity. CVSS v3 base score is 6.3 out of 10.

RCE in Edimax Br-6478ac

CVE-2026-10166

A vulnerability was determined in Edimax BR-6478AC 1.23. The affected element is the function formWlbasic of the file /goform/formWlbasic of the component POST Request Handler. This manipulation of the argument rootAPmac causes command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

Published 2026-05-31 · last modified 2026-07-22.

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: 0.011 (63.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Edimax Br-6478ac — versions 1.23

Weakness classification (CWE)

References

vuldb.com/vuln/367418 (technical-description, vdb-entry)
vuldb.com/vuln/367418/cti (signature, permissions-required)
vuldb.com/submit/818623 (third-party-advisory)
lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formWlbasic-34b53a41781f80ed… (exploit)

Frequently asked questions

What is CVE-2026-10166?: CVE-2026-10166 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 2026-05-31.
How severe is CVE-2026-10166?: Medium severity. CVSS v3 base score is 6.3 out of 10.