The Synology RS3618xs is a 2U rack-mountable 12-bay NAS with an Intel Xeon D-1521 processor, dual built-in 10GbE ports, and ECC memory, expandable to 36 drives via expansion units for demanding enterprise deployments. It runs DiskStation Manager with Synology High Availability support, Btrfs data protection, and advanced RAID configurations.
Product released: June 1, 2018
Latest firmware version
Version 7.3.2-86009 Update 3, released March 19, 2026
What's new in version 7.3.2-86009 Update 3
Important notes
Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to update it manually.
The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
Your DSM is working fine without having to update. The system evaluates service statuses and system settings to determine whether it needs to update to this version.
This update will restart the device.
Fixed Issues
Fixed a security vulnerability regarding Telnetd (CVE-2026-32746)(Synology-SA-26:03).
firmware version history
Version 7.3.2-86009 Update 3 - March 19, 2026
Version 7.2.2-72806 Update 8 - March 19, 2026
Version 7.3.2-86009 Update 2 - March 16, 2026
Version 7.2.2-72806 Update 7 - March 16, 2026
Version 7.3.2-86009 Update 1 - February 10, 2026
Version 7.2.2-72806 Update 6 - January 30, 2026
Version 7.3.2-86009 - December 2, 2025
Version 7.3.1-86003 Update 1 - November 18, 2025
Version 7.2.2-72806 Update 5 - November 18, 2025
Version 7.3.1-86003 - October 28, 2025
Version 7.3-81180 - October 8, 2025
Version 7.2.2-72806 Update 4 - July 24, 2025
Version 7.2.2-72806 Update 3 - February 13, 2025
Version 7.2.2-72806 Update 2 - November 26, 2024
Update prediction
A firmware update is expected soon, between March 30, 2026 and May 10, 2026.
Synology typically releases firmware updates for this product approximately every 21 days.