CVE-2026-8227 — The Function WzdapMesh Of The File /Cgi-Bin/Adm.Cgi Command Injection
CVE-2026-8227 — A weakness has been identified in Wavlink NU516U1 240425. This issue affects the function wzdapMesh of the file /cgi-bin/adm.cgi. This manipulation causes os command injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used f
What This Means For You
- If your environment is affected by CWE-77, CWE-78, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-8227 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-8227 - Wavlink NU516U1 adm.cgi Command Injection
title: CVE-2026-8227 - Wavlink NU516U1 adm.cgi Command Injection
id: scw-2026-05-10-ai-1
status: experimental
level: critical
description: |
Detects the specific command injection vulnerability in Wavlink NU516U1 affecting the wzdapMesh function within adm.cgi. This rule looks for POST requests to '/cgi-bin/adm.cgi' containing 'wzdapMesh' in the query string, combined with a command line indicating shell execution, which is characteristic of this exploit.
author: SCW Feed Engine (AI-generated)
date: 2026-05-10
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-8227/
tags:
- attack.execution
- attack.t1059.004
logsource:
category: webserver
detection:
selection:
cs-uri:
- '/cgi-bin/adm.cgi'
cs-method:
- 'POST'
cs-uri-query|contains:
- 'wzdapMesh'
CommandLine|contains:
- 'sh -c'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-8227 | vulnerability | CVE-2026-8227 |
| CWE-77 | weakness | CWE-77 |
| CWE-78 | weakness | CWE-78 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 10, 2026 at 08:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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