CVE-2026-8263 — Tenda AC6 15.03.06.49_multi_TDE01 Command Injection

title: CVE-2026-8263: Tenda AC6 Command Injection via WifiExtraSet
id: scw-2026-05-11-ai-1
status: experimental
level: critical
description: |
  Detects exploitation attempts against Tenda AC6 devices by targeting the fromSetWirelessRepeat function in /goform/WifiExtraSet. The vulnerability allows OS command injection via manipulation of the 'mac' and 'ssid' parameters. This rule specifically looks for POST requests to the vulnerable endpoint with the expected parameters, indicating a potential exploit attempt.
author: SCW Feed Engine (AI-generated)
date: 2026-05-11
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-8263/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/goform/WifiExtraSet'
      cs-uri-query|contains:
          - 'mac='
          - 'ssid='
      cs-method|exact:
          - 'POST'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse