How broadly exploitable is this vulnerability?

Exploitability depends on where and how the speaker is deployed. If the vulnerable UDP service is reachable from untrusted networks, an attacker can potentially exploit it remotely without interacting with the user. In a tightly isolated network, the risk is mainly from insiders or compromised local devices.

Does an attacker need authentication or physical access?

Based on the described behavior, no authentication or physical access is required. The attacker only needs the ability to send crafted UDP datagrams to the affected service on the device.

What is the safest general fix pattern for developers?

The most robust fix is to remove any reliance on shell command construction from network input and use safe, parameterized process execution APIs, combined with strict allowlist input validation. Additionally, run the UDP-handling code with the least privileges necessary rather than as root.

Severity:

CRITICAL RISK

(9.8)

OS Command Injection (CWE-78) in Mobvoi Tichome Mini Smart Speaker UDP Handler

CVE-2026-26478

Published:

Mar 4, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-78

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

Remote Code Execution

March 7, 2026

CWE-89

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Remote Code Execution via SQL Injection on the Database Server

March 7, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution as Root

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution as Root

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

OS Command Injection (CWE-78) in Mobvoi Tichome Mini Smart Speaker UDP Handler

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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