Buffer overflow in Edimax Br-6478ac
CVE-2026-10126
A security flaw has been discovered in Edimax BR-6478AC 1.23. Affected by this issue is the function formQoS of the file /goform/formQoS of the component POST Request Handler. The manipulation of the argument selSSID results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Edimax Br-6478ac — versions 1.23
Weakness classification (CWE)
References
- vuldb.com/vuln/367303 (technical-description, vdb-entry)
- vuldb.com/vuln/367303/cti (signature, permissions-required)
- vuldb.com/submit/818454 (third-party-advisory)
- lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formQoS-34b53a41781f804e9ddf… (exploit)
Frequently asked questions
- What is CVE-2026-10126?
- CVE-2026-10126 is a high-severity vulnerability in Edimax Br-6478ac, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-30.
- How severe is CVE-2026-10126?
- High severity. CVSS v3 base score is 8.8 out of 10.