PT-2026-42970 · Edimax · Br-6675Nd

Yhryhryhr_Tu · Published 2026-04-23 · Updated 2026-05-24 · CVE-2026-9399

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Edimax BR-6675nD version 1.12

Description A buffer overflow can be triggered remotely via the POST Request Handler component. The issue exists within the formsetPPPoE() function located in the '/goform/formsetPPPoE' endpoint when the pppUserName argument is manipulated. A buffer overflow occurs when a program writes more data to a block of memory, or buffer, than it is allocated to hold, potentially leading to crashes or arbitrary code execution.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the '/goform/formsetPPPoE' endpoint or avoid using the pppUserName parameter until a resolution is provided.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2026-07275

CVE-2026-9399

Affected Products

Br-6675Nd

References · 7

• 🔥 https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6675nD-formsetPPPoE-34b53a41781f8025abcded9e7d0734ef?source=copy_link · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-9399 · Security Note
• https://bdu.fstec.ru/vul/2026-07275 · Security Note
• https://vuldb.com/vuln/365380 · Note
• https://vuldb.com/submit/811561 · Note
• https://vuldb.com/vuln/365380/cti · Note
• https://t.me/CVEtracker/54793 · Telegram Post