Vulnerability · Published May 23, 2026 · Assigned by VulDB

CVE-2026-9294Edimax BR-6428NS POST Request formWanTcpipSetup buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in BR-6428NS from Edimax. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 54.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in Edimax BR-6428NS 1.10. The impacted element is the function formWanTcpipSetup of the file /goform/formWanTcpipSetup of the component POST Request Handler. Such manipulation of the argument pppUserName leads to buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Edimax	BR-6428NS	1.10

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-365241 | Edimax BR-6428NS POST Request formWanTcpipSetup buffer overflow vdb-entry, technical-description
VDB-365241 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #811533 | EDIMAX BR-6428NS BR-6428NS_v4_1.10 Buffer Overflow third-party-advisory
https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6428NS-formWanTcpipSetup-34b53a41781f80049b27db22e62fd8fd?source=copy_link exploit