CVE-2026-8344 — Command Injection

title: CVE-2026-8344 - D-Link DIR-816 Command Injection via formDMZ.cgi
id: scw-2026-05-11-ai-1
status: experimental
level: critical
description: |
  Detects attempts to exploit CVE-2026-8344 by targeting the /goform/formDMZ.cgi endpoint on D-Link DIR-816 devices. The rule looks for common command injection payloads within the URI query string, indicating an attempt to execute arbitrary commands.
author: SCW Feed Engine (AI-generated)
date: 2026-05-11
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-8344/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/goform/formDMZ.cgi'
      cs-uri-query|contains:
          - 'ping'
          - 'wget'
          - 'curl'
          - 'nc'
          - 'telnet'
          - 'sh'
          - 'bash'
          - 'cat /etc/passwd'
          - 'uname -a'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse