CVE-2026-12806CWE-119CWE-120

Edimax BR-6478AC V2 POST Request formWlSiteSurvey buffer overflow

High · published June 21, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
56.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
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
EPSS
0.00805 · 56.4th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-06-21T19:30Z
EPSS history
Timeline
  • 21 JUN 19:30Z
    Edimax BR-6478AC V2 POST Request formWlSiteSurvey buffer overflow
    cvelistv5