CVE-2026-8346 — D-Link DIR-816 1.10CNB05_R1B011D88210 Command Injection

title: CVE-2026-8346 D-Link DIR-816 Port Forwarding Command Injection
id: scw-2026-05-12-ai-1
status: experimental
level: critical
description: |
  Detects exploitation attempts against D-Link DIR-816 devices via the portForward function. The vulnerability (CVE-2026-8346) allows command injection by manipulating the 'ip_address' parameter. This rule specifically looks for the '/goform/portForward' URI and the presence of command injection characters like '&&' or ';' within the 'ip_address' parameter in the query string.
author: SCW Feed Engine (AI-generated)
date: 2026-05-12
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-8346/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/goform/portForward'
      cs-uri-query|contains:
          - 'ip_address='
      cs-uri-query|contains:
          - '&&'
      cs-uri-query|contains:
          - ';'
      condition: cs-uri AND cs-uri-query
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse