Edimax BR-6428nC setWAN buffer overflow

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Summary

CVECVE-2026-7684
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-03 07:16:25 UTC
Updated2026-05-03 07:16:25 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 7.4 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-119 | CWE-120 | CWE-120 Buffer Overflow | CWE-119 Memory Corruption

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.4HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
3.0CNADECLARED8.8HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
2.0[email protected]Secondary9AV:N/AC:L/Au:S/C:C/I:C/A:C
2.0CNADECLARED9AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Edimax BR-6428nC affected 1.0 Not specified
CNA Edimax BR-6428nC affected 1.1 Not specified
CNA Edimax BR-6428nC affected 1.2 Not specified
CNA Edimax BR-6428nC affected 1.3 Not specified
CNA Edimax BR-6428nC affected 1.4 Not specified
CNA Edimax BR-6428nC affected 1.5 Not specified
CNA Edimax BR-6428nC affected 1.6 Not specified
CNA Edimax BR-6428nC affected 1.7 Not specified
CNA Edimax BR-6428nC affected 1.8 Not specified
CNA Edimax BR-6428nC affected 1.9 Not specified
CNA Edimax BR-6428nC affected 1.10 Not specified
CNA Edimax BR-6428nC affected 1.11 Not specified
CNA Edimax BR-6428nC affected 1.12 Not specified
CNA Edimax BR-6428nC affected 1.13 Not specified
CNA Edimax BR-6428nC affected 1.14 Not specified
CNA Edimax BR-6428nC affected 1.15 Not specified
CNA Edimax BR-6428nC affected 1.16 Not specified

References

ReferenceSourceLinkTags
vuldb.com/submit/801599 [email protected] vuldb.com
vuldb.com/vuln/360843/cti [email protected] vuldb.com
tzh00203.notion.site/Edimax-BR-6428nC-v1-16-setWAN-pptpDfGateway-Stack-Overflow-33... [email protected] tzh00203.notion.site
vuldb.com/vuln/360843 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: tian (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-02T00:00:00.000ZAdvisory disclosed
CNA2026-05-02T02:00:00.000ZVulDB entry created
CNA2026-05-02T13:10:42.000ZVulDB entry last update
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