What’s Vulnerable › Vulnerabilities

CVE-2026-12806: Edimax BR-6478AC V2 POST Request formWlSiteSurvey buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-21 · updated 2026-10-25
• Weakness: CWE-119

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.

Affected products

• Edimax BR-6478AC V2: 1.23

References

• https://lavender-bicycle-a5a.notion.site/EDIMAX-BR6478ACV2-formWlSiteSurvey-34b53a41781f80669c10df409a0851d4?source=copy_link
• https://vuldb.com/cve/CVE-2026-12806
• https://vuldb.com/submit/836668
• https://vuldb.com/vuln/372600
• https://vuldb.com/vuln/372600/cti

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