A reboot is required only when upgrading from versions earlier than SynetoOS 6.0.3, including SynetoOS 5. Upgrading from SynetoOS 6.0.3, 6.0.4 or 6.0.5 does not require a reboot.
This release fixes a critical security vulnerability. We strongly recommend upgrading as soon as possible.
SynetoOS 6.0.6 is a security and maintenance release that fixes a critical vulnerability, removes trust in a compromised certificate authority and improves the reliability of upgrades from SynetoOS 5 and of data protection.
Introduction
SynetoOS 6.0.6 is a security and maintenance release. It fixes a critical vulnerability in a web server component, stops trusting certificates issued by a compromised certificate authority, and improves the reliability of upgrades from SynetoOS 5 and of data protection capabilities.
Resolved Issues
Security
- Fixed a critical vulnerability in PHP (CVE-2026-109618, CVE-2026-109619, also known as “PHP2Shell”) that allowed remote code execution without authentication. PHP has been updated to version 8.5.12.
- Fixed an issue where certificates issued by the compromised eMudhra intermediate certificate authorities were still trusted (CVE-2026-114406). These certificates are no longer trusted and the trusted root certificates have been updated.
Software Update
- Fixed an issue where some upgrades from SynetoOS 5 stopped at the preparation step on appliances originally installed from an ISO image, with the error “system-logos is needed by (installed) anaconda-gui”.
- Fixed an issue where upgrades from SynetoOS 5 could fail with the error “cannot open Packages database” when the upgrade steps were resumed manually by the technical support team.
Data Protection
- Fixed an issue where some upgrades from SynetoOS 5 stopped at the preparation step on appliances originally installed from an ISO image, with the error “system-logos is needed by (installed) anaconda-gui”.
- Fixed an issue where upgrades from SynetoOS 5 could fail with the error “cannot open Packages database” when the upgrade steps were resumed manually by the technical support team.
Ongoing Improvements and Future Releases
This SynetoOS 6 update continues the series of ongoing improvements and new features from Syneto. Your feedback is extremely valuable in supporting our commitment to delivering a high-quality operating system. We invite you to explore the new release, discover what’s new, and share your feedback and insights to help shape upcoming SynetoOS features and deliver maximum value.