CVE-2026-0711 — The EasyMesh-Related APIs Of Zyxel DX3300-T0 Firmware Versio Command Injection
CVE-2026-0711 — A post-authentication command injection vulnerability in the EasyMesh-related APIs of Zyxel DX3300-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated, adjacent attacker with administrator privileges to execute OS commands on an affected device.
What This Means For You
- If your environment is affected by CWE-78, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-0711 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-2026-0711: Zyxel DX3300-T0 EasyMesh Command Injection
Sigma YAML — free preview
title: CVE-2026-0711: Zyxel DX3300-T0 EasyMesh Command Injection
id: scw-2026-04-28-ai-1
status: experimental
level: critical
description: |
This rule detects attempts to exploit CVE-2026-0711 by looking for specific URI paths and query parameters commonly used in command injection attacks against Zyxel DX3300-T0 EasyMesh APIs. This targets the post-authentication command injection vulnerability.
author: SCW Feed Engine (AI-generated)
date: 2026-04-28
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-0711/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/easymesh/'
cs-uri-query|contains:
- 'cmd='
- 'script='
- 'exec='
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-0711 | vulnerability | CVE-2026-0711 |
| CWE-78 | weakness | CWE-78 |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 28, 2026 at 06:16 UTC |
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