Buffer overflow in Edimax Br-6428nc
CVE-2026-7684
A security vulnerability has been detected in Edimax BR-6428nC up to 1.16. This impacts an unknown function of the file /goform/setWAN. Such manipulation of the argument pptpDfGateway leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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: 0.005 (40.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Edimax Br-6428nc — versions 1.0, 1.1, 1.2
Weakness classification (CWE)
References
- vuldb.com/vuln/360843 (technical-description, vdb-entry)
- vuldb.com/vuln/360843/cti (signature, permissions-required)
- vuldb.com/submit/801599 (third-party-advisory)
- tzh00203.notion.site/Edimax-BR-6428nC-v1-16-setWAN-pptpDfGateway-Stack-Overflow… (exploit)
Frequently asked questions
- What is CVE-2026-7684?
- CVE-2026-7684 is a high-severity vulnerability in Edimax Br-6428nc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-03.
- How severe is CVE-2026-7684?
- High severity. CVSS v3 base score is 8.8 out of 10.