CVE-2025-29629 in Gardyn
Summary
by MITRE • 07/25/2025
Gardyn Home Kit firmware before master.619, Home Kit Mobile Application before 2.11.0, and Home Kit Cloud API before 2.12.2026 use weak default credentials for secure shell access. This may result in attackers gaining access to exposed Gardyn Home Kits.
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Analysis
by VulDB Data Team • 02/26/2026
The vulnerability identified as CVE-2025-29629 represents a critical security flaw in the Gardyn Home Kit ecosystem that affects multiple components including firmware versions prior to master.619, mobile applications before version 2.11.0, and cloud API services before 2.12.2026. This weakness stems from the implementation of weak default credentials for secure shell access which creates an exploitable entry point for malicious actors targeting connected home devices. The vulnerability specifically impacts the authentication mechanisms that govern remote access to these smart home devices, making it particularly concerning given the increasing reliance on IoT devices for residential security and automation. The use of predictable or default credentials violates fundamental security principles and creates a pathway for unauthorized access that could compromise entire home networks.
The technical flaw manifests through the persistent use of hardcoded or easily guessable username and password combinations that remain unchanged across device deployments. This implementation directly violates security best practices outlined in the CWE database under category 798, which addresses the use of hard-coded credentials, and aligns with the ATT&CK framework's credential access tactics. The default credentials typically follow predictable patterns such as admin/admin, root/root, or device-specific naming conventions that security researchers and attackers readily discover through automated scanning tools. When these devices are exposed to the internet or improperly segmented within home networks, the weak authentication becomes a critical attack surface that enables remote exploitation without requiring advanced techniques or significant resources.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential full network compromise and privacy violations. Attackers who successfully exploit this weakness can gain persistent access to the Gardyn Home Kit devices, potentially enabling them to monitor connected sensors, manipulate security settings, or use the compromised device as a pivot point for attacking other networked systems. This vulnerability particularly affects the security model of smart home ecosystems where devices are often deployed without proper network segmentation or additional authentication layers. The implications include unauthorized surveillance capabilities, potential data exfiltration from connected sensors, and the ability to manipulate home automation systems, which could lead to physical security breaches or privacy violations. The vulnerability also creates opportunities for attackers to establish persistent backdoors within residential networks, making long-term compromise possible.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements. Organizations and users should immediately update all affected components to the latest firmware versions, mobile applications, and cloud API services to eliminate the use of default credentials. The implementation of strong, unique authentication credentials for each device deployment should be enforced through automated provisioning processes rather than relying on default settings. Network segmentation should be implemented to isolate IoT devices from primary network segments, and access controls should be configured to limit remote access to authorized personnel only. Additionally, regular security audits should be conducted to identify and remediate similar credential-related vulnerabilities, and the deployment of intrusion detection systems can help identify unauthorized access attempts. The security community should also consider implementing certificate-based authentication mechanisms and multi-factor authentication to provide additional layers of protection beyond simple username and password combinations.