Cudy WR3000 2.0 OS Command Injection via Mesh MQTT Command Handler (CVE-2026-71961) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-71961

Cudy WR3000 2.0 OS Command Injection via Mesh MQTT Command Handler

Answer in brief

CVE-2026-71961 records a Unknown severity vulnerability in Cudy WR3000 2.0 OS Command Injection via Mesh MQTT Command Handler. The current sources do not mark it as known exploited. The current feed maps Shenzhen Cudy Technology Co., Ltd./WR3000 2.0 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 19, 2026Updated Aug 19, 2026Source checked Aug 19, 2026First seen by HOL Aug 19, 2026Material review Aug 19, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Shenzhen Cudy Technology Co., Ltd./WR3000 2.0 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Shenzhen Cudy Technology Co., Ltd./WR3000 2.0generic	>=0 <2.5.24	2.5.24

Recommended response

Check inventory. Check lockfiles and deployed manifests for Shenzhen Cudy Technology Co., Ltd./WR3000 2.0.
Review the reported fix. Update Shenzhen Cudy Technology Co., Ltd./WR3000 2.0 to 2.5.24 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 19, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.