CVE-2026-12809: edimax br-6478ac v2 Injection

Vulnerability summary

CVE-2026-12809 is a medium (CVSS 6.5) Injection vulnerability in edimax br-6478ac v2. EPSS estimates a 1.99% chance of exploitation in the next 30 days, higher than 80.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 21-06-2026
   PublishedVulnerability first disclosed.
2. 22-06-2026
   Last modifiedVulnerability information updated.

Description

A vulnerability was identified in Edimax BR-6478AC V2 1.23. Affected is the function wiz_5in1_redirect of the file /goform/wiz_5in1_redirect of the component POST Request Handler. Such manipulation of the argument newpass leads to command injection. The attack can be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.