CVE-2026-9443

A security vulnerability has been detected in Edimax BR-6478AC 1.23. This vulnerability affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. The manipulation of the argument L2TPUserName leads to buffer overflow. The attack may be initiated 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.

Score

CVSS 3.1 8.8 High

Status

Deferred - cna@vuldb.com

Published

2026-05-25

Last modified

2026-05-26

Weaknesses

CWE-119, CWE-120

Affected products

• Br-6478ac Firmware (Edimax)

References

• https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formL2TPSetup-34b53a41781f809e9c30c1260cc5d92e?source=copy_l…
• https://vuldb.com/submit/818452
• https://vuldb.com/vuln/365424
• https://vuldb.com/vuln/365424/cti