CVE-2025-29628: Remote Vulnerability in Gardyn 4 Allows Sensitive Data Exposure and Arbitrary Code Execution

Overview

The cybersecurity world is currently dealing with a critical issue identified as CVE-2025-29628. This vulnerability exists in Gardyn 4, a popular software application. It allows remote attackers to obtain sensitive information and execute arbitrary code via a single request. Because Gardyn 4 is widely used in many industries, this vulnerability has the potential to affect a vast number of systems, making it a significant concern for organizations worldwide. The potential impact of this critical vulnerability includes system compromise and data leakage, two outcomes that no organization wants to experience.

Vulnerability Summary

CVE ID: CVE-2025-29628
Severity: High (CVSS: 8.1)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage

Affected Products

Product | Affected Versions

Gardyn 4 | All versions

How the Exploit Works

The vulnerability lies in the way Gardyn 4 handles certain types of network requests. A remote attacker can exploit this weakness by sending a specially crafted request to a vulnerable system. The request forces Gardyn 4 to leak sensitive information and allows the attacker to execute arbitrary code. The code execution occurs in the security context of the system, which could potentially allow the attacker to gain control of the affected system.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP request that sends a malicious payload to the vulnerable endpoint:

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "<arbitrary code>" }

In this example, `` represents the code that an attacker might attempt to execute on the target system. This is merely a conceptual representation and not an actual exploit code.

Mitigation and Prevention

While the vendor is currently working on a patch to fix this vulnerability, there are temporary mitigation steps that can be taken to minimize the risk. It is recommended to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and block malicious requests. Administrators should monitor their systems for any signs of unauthorized access or unusual network activity. If a vendor patch becomes available, it should be applied as soon as possible to protect against this serious vulnerability.