High severity · published May 3, 2026
CVE-2026-7684
Edimax BR-6428nC setWAN buffer overflow
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
A security vulnerability has been detected in Edimax BR-6428nC up to 1.16. This impacts an unknown function of the file /goform/setWAN. Such manipulation of the argument pptpDfGateway leads to buffer overflow. The attack can be launched 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.
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 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BR
BR-6428nC · Edimax
1.0; 1.1; 1.2; 1.3; 1.4; 1.5; +11 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7684
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7684
tzh00203.notion.site
https://tzh00203.notion.site/Edimax-BR-6428nC-v1-16-setWAN-pptpDfGateway-Stack-Overflow-33db5c52018a80c1835dd4fab4b6c7f2
vuldb.com
https://vuldb.com/submit/801599
vuldb.com
https://vuldb.com/vuln/360843
vuldb.com
https://vuldb.com/vuln/360843/cti
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