CVE-2026-12806

HIGH

Edimax BR-6478AC V2 POST Request formWlSiteSurvey buffer overflow

Title source: cna
STIX 2.1

Description

A vulnerability has been found in Edimax BR-6478AC V2 1.23. The impacted element is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey of the component POST Request Handler. The manipulation of the argument selSSID leads to buffer overflow. It is possible to initiate 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.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-372600 | Edimax BR-6478AC V2 POST Request formWlSiteSurvey buffer overflow
https://vuldb.com/vuln/372600
Signature, Permissions Required signature permissions-required
VDB-372600 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/372600/cti
Third Party Advisory third-party-advisory
CVE-2026-12806 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-12806
Third Party Advisory third-party-advisory
Submit #836668 | EDIMAX BR6478ACV2 BR6478ACV2_v1.23 Buffer Overflow
https://vuldb.com/submit/836668

Scores

CVSS v3 8.8
EPSS 0.0046
EPSS Percentile 36.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-120
Status published
Products (1)
Edimax/BR-6478AC V2 1.23
Published Jun 21, 2026
Tracked Since Jun 22, 2026