CVE-2026-8776

Edimax BR-6428NS POST Request formPPTPSetup buffer overflow

Published May 18, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
A vulnerability has been found in Edimax BR-6428NS 1.10. This vulnerability affects the function formPPTPSetup of the file /goform/formPPTPSetup of the component POST Request Handler. Such manipulation of the argument pptpUserName leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Edimax br-6428ns
Vendors & Products Edimax br-6428ns
Type Values Removed Values Added
Description A vulnerability has been found in Edimax BR-6428NS 1.10. This vulnerability affects the function formPPTPSetup of the file /goform/formPPTPSetup of the component POST Request Handler. Such manipulation of the argument pptpUserName leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title Edimax BR-6428NS POST Request formPPTPSetup buffer overflow
First Time appeared Edimax
Edimax br-6428ns Firmware
Weaknesses CWE-119
CWE-120
CPEs cpe:2.3:o:edimax:br-6428ns_firmware:*:*:*:*:*:*:*:*
Vendors & Products Edimax
Edimax br-6428ns Firmware
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': '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'}

cvssV3_1

{'score': 8.8, 'vector': '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'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
May 18, 2026, 7:50 PM
Reserved
May 17, 2026, 9:41 AM
Status
Deferred
Published
May 18, 2026, 2:16 AM
Modified
Oct 26, 2026, 1:10 PM