CVE-2025-29629: Remote Code Execution and Information Disclosure Vulnerability in Gardyn 4

Overview

The security vulnerability identified as CVE-2025-29629 is a serious flaw that resides in Gardyn 4, a widely used home automation system. This vulnerability could allow an attacker to remotely execute arbitrary code and obtain sensitive information, potentially compromising the entire system or leading to data leakage. With a CVSS Severity Score of 8.8, it’s crucial that users and administrators understand the impact of this vulnerability and apply the necessary patches or mitigative measures.

Vulnerability Summary

CVE ID: CVE-2025-29629
Severity: High (CVSS: 8.8)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: System Compromise, Data Leakage

Affected Products

Product | Affected Versions

Gardyn 4 | All versions up to latest

How the Exploit Works

The vulnerability resides in the Gardyn Home component of the Gardyn 4 system. It appears that due to improper input validation, an attacker can send specially crafted data packets to this component. Once the malicious packets are received, the Gardyn Home component processes them, inadvertently executing the attacker’s arbitrary code and potentially leaking sensitive information.

Conceptual Example Code

Below is a conceptual example of how an attacker might exploit this vulnerability using an HTTP POST request to a vulnerable endpoint:

POST /gardyn/home HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "<INSERT ARBITRARY CODE HERE>" }

To mitigate this vulnerability, users are advised to apply the latest vendor-supplied patches immediately. In the absence of such patches, or until they can be applied, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These tools can potentially block the malicious traffic or alert administrators to an ongoing attack.