CVE-2026-8775 | THREATINT

Description

A flaw has been found in Edimax BR-6428NS 1.10. This affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. This manipulation of the argument L2TPUserName causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-05-17 | Published 2026-05-18 | Updated 2026-05-18 | Assigner VulDB

HIGH: 8.7CVSS: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

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

1.10

affected

Timeline

2026-05-17:	Advisory disclosed
2026-05-17:	VulDB entry created
2026-05-17:	VulDB entry last update

Credits

wxhwxhwxh_tutu (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/364400 (VDB-364400 | Edimax BR-6428NS POST Request formL2TPSetup buffer overflow) vdb-entry technical-description

vuldb.com/vuln/364400/cti (VDB-364400 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/811530 (Submit #811530 | EDIMAX BR-6428NS BR-6428NS_v4_1.10 Buffer Overflow) third-party-advisory

lavender-bicycle-a5a.notion.site/...90c5277?source=copy_link exploit

cve.org (CVE-2026-8775)

nvd.nist.gov (CVE-2026-8775)

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