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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-71961— Cudy WR3000 2.0 OS Command Injection via Mesh MQTT Command Handler

Quick assessment

Affected
Shenzhen Cudy Technology Co., Ltd. WR3000 2.0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cudy WR3000是中国Cudy公司的一款高性能无线路由器。 Cudy WR3000 2.0 2.5.24之前版本存在命令注入漏洞，该漏洞源于mesh MQTT命令接口未对用户输入进行充分过滤，sync_command二进制将未净化输入直接传递至command.lua中的shell执行接收器，导致OS命令注入，可能允许经过身份验证的攻击者以root权限执行任意系统命令。

CVSS 8.8 · High EPSS 2.70% · P86

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Shenzhen Cudy Technology Co., Ltd. WR3000 2.0 < 2.5.24 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-71961

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Cudy WR3000 2.0 OS Command Injection via Mesh MQTT Command Handler
Source: CVE Program / CVE List V5
Vulnerability Description
Cudy WR3000 2.0 running firmware before 2.5.24 contains an OS command injection vulnerability that allows authenticated attackers to execute arbitrary OS commands with root privileges by sending unsanitized input through the mesh MQTT command interface. The sync_command binary forwards unsanitized input directly to a shell execution sink in command.lua, enabling attackers with access to the MQTT broker to exploit the default-enabled command execution path to achieve full root-level system compromise.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Cudy WR3000 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cudy WR3000是中国Cudy公司的一款高性能无线路由器。 Cudy WR3000 2.0 2.5.24之前版本存在命令注入漏洞，该漏洞源于mesh MQTT命令接口未对用户输入进行充分过滤，sync_command二进制将未净化输入直接传递至command.lua中的shell执行接收器，导致OS命令注入，可能允许经过身份验证的攻击者以root权限执行任意系统命令。
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
Shenzhen Cudy Technology Co., Ltd. WR3000 2.0 0 ~ 2.5.24 -

II. Public POCs for CVE-2026-71961

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-71961

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-71961 (1)

Vendor Pages for CVE-2026-71961 (1)

IV. Related Vulnerabilities

Same product: WR3000 2.0
Same vendor: Shenzhen Cudy Technology Co., Ltd.
Same weakness: CWE-78

V. Comments for CVE-2026-71961

No comments yet

Leave a comment