What is CVE-2026-9399?

CVE-2026-9399 is a high-severity vulnerability in Edimax Br-6675nd, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-24.

How severe is CVE-2026-9399?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Edimax Br-6675nd

CVE-2026-9399

A vulnerability was detected in Edimax BR-6675nD 1.12. This vulnerability affects the function formsetPPPoE of the file /goform/formsetPPPoE of the component POST Request Handler. Performing a manipulation of the argument pppUserName resul…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (14.6th percentile) — read the EPSS interpretation.

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.

Affected products

Edimax Br-6675nd — versions 1.12

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-9399?: CVE-2026-9399 is a high-severity vulnerability in Edimax Br-6675nd, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-24.
How severe is CVE-2026-9399?: High severity. CVSS v3 base score is 8.8 out of 10.