CVE-2026-7682 — Edimax BR-6208AC Command Injection

title: CVE-2026-7682 - Edimax BR-6208AC L2TPUserName Command Injection
id: scw-2026-05-03-ai-1
status: experimental
level: critical
description: |
  Detects attempts to exploit CVE-2026-7682 on Edimax BR-6208AC devices. The rule specifically looks for requests to the '/goform/setWAN' endpoint with the 'L2TPUserName' parameter containing characters indicative of command injection (space, &&, ;, |). This is the primary vector for initial access via this vulnerability.
author: SCW Feed Engine (AI-generated)
date: 2026-05-03
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-7682/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|startswith:
          - '/goform/setWAN'
      cs-uri-query|contains:
          - 'L2TPUserName='
      cs-uri-query|contains:
          - ' ' 
      cs-uri-query|contains:
          - '&&' 
      cs-uri-query|contains:
          - ';' 
      cs-uri-query|contains:
          - '|'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse