CVE-2026-8775
Edimax BR-6428NS POST Request formL2TPSetup buffer overflow
- State
- Published
- Severity
- 8.7 High
- Published
- May 18, 2026
- Updated
- May 18, 2026
- Reserved
- May 17, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulDB |
| 3.1 | 8.8 High | 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 | VulDB |
| 3.0 | 8.8 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 | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
BR-6428NSEdimax |
|
References
- VDB-364400 | Edimax BR-6428NS POST Request formL2TPSetup buffer overflowvdb-entrytechnical-description
- VDB-364400 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #811530 | EDIMAX BR-6428NS BR-6428NS_v4_1.10 Buffer Overflowthird-party-advisory
- https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6428NS-formL2TPSetup-34b53a41781f8046b38bffcc190c5277?source=copy_linkexploit
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