High severity · published May 23, 2026
CVE-2026-9294
Edimax BR-6428NS POST Request formWanTcpipSetup buffer overflow
8.8
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BR
BR-6428NS · Edimax
1.10 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9294
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9294
lavender-bicycle-a5a.notion.site
https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6428NS-formWanTcpipSetup-34b53a41781f80049b27db22e62fd8fd?source=copy_link
vuldb.com
https://vuldb.com/submit/811533
vuldb.com
https://vuldb.com/vuln/365241
vuldb.com
https://vuldb.com/vuln/365241/cti
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