CVE-2026-9399

HIGH

Edimax BR-6675nD POST Request formsetPPPoE buffer overflow

Title source: cna
STIX 2.1

Description

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 results in buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

References (4)

Core 4
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-365380 | Edimax BR-6675nD POST Request formsetPPPoE buffer overflow
https://vuldb.com/vuln/365380
Signature, Permissions Required signature permissions-required
VDB-365380 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/365380/cti
Third Party Advisory third-party-advisory
Submit #811561 | EDIMAX BR-6675nD BR-6675nD v1.12 Buffer Overflow
https://vuldb.com/submit/811561

Scores

CVSS v3 8.8
EPSS 0.0059
EPSS Percentile 43.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-120
Status published
Products (1)
Edimax/BR-6675nD 1.12
Published May 24, 2026
Tracked Since May 25, 2026