Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-18686— GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection

Quick assessment

Affected
GL.iNet GL-MT3000
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GL-iNet GL-MT3000 firmware是中国GL-iNet公司的一款便携无线路由器的固件程序。 GL-iNet gl-mt3000 firmware 4.4.5及之前版本存在安全漏洞，该漏洞源于nas-web RPC Wrapper组件的/cgi-bin/glc文件中nas-web.add_user函数操作不当，导致命令注入，攻击者可远程发起攻击。

CVSS 9.8 · Critical EPSS 4.73% · P92

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProduct Version RangeStatus
GL.iNet GL-MT3000 4.4.0 affected
4.4.1 affected
4.4.2 affected
4.4.3 affected
4.4.4 affected
4.4.5 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-18686

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function nas-web.add_user of the file /cgi-bin/glc of the component nas-web RPC Wrapper. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
GL-iNet gl-mt3000 firmware 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GL-iNet GL-MT3000 firmware是中国GL-iNet公司的一款便携无线路由器的固件程序。 GL-iNet gl-mt3000 firmware 4.4.5及之前版本存在安全漏洞，该漏洞源于nas-web RPC Wrapper组件的/cgi-bin/glc文件中nas-web.add_user函数操作不当，导致命令注入，攻击者可远程发起攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GL.iNet GL-MT3000 4.4.0 cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18686

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 11989 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-18686

请登录查看更多情报信息。

Proof of Concept for CVE-2026-18686 (1)

IV. Related Vulnerabilities

Same product: GL-MT3000
Same vendor: GL.iNet
Same weakness: CWE-77

V. Comments for CVE-2026-18686

No comments yet

Leave a comment