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Synology DSM 7.3.2-86009 Update 3 – safe to update?

Newer release in this line: Synology DSM 7.3.2-86009 Update 5 (2026-10-12). If you're updating now, check that one instead — it may already fix the issues reported here.

Security update: this release fixes security issues (highest CVSS 9.8). Waiting carries its own risk — if your device is exposed, weigh that against the reports below.

What's in this release

CVEs fixed

• CVE-2026-32746 CRITICAL 9.8 (named in release notes)
  telnetd in GNU inetutils through 2.7 allows an out-of-bounds write in the LINEMODE SLC (Set Local Characters) suboption handler because add_slc does not check whether the buffer is full.

Community reports

• Problem New File Station causing issues on DS920+? · Reddit · 2026-05-08

  I recently installed the new version of File Station 1.4.3-1610 on current DSM 7.3.2-86009 Update 3 on a DS920+. The icon/notification gets stuck doing anything involving a file copy/delete/move. The icon in the top right, the File Task Monitor, seems to endlessly sit at doing n…

• Fine update from 7.2.2-72806 update 5 to 7.3.2-86009 update 3, any issues? · Reddit · 2026-04-30

  I held off updating my 923+ as I was going to be away for a couple months. Now I am back and this is the update DSM proposes.. I use the serial driver addons for my Zigbee2MQTT and Tread BR adapters. also have docker, and VMM running. I want the native fat32 support. anything I…

• Mention Synology DS224+ crashing repeatedly with no log evidence -- anyone seen this? · Reddit · 2026-07-08

  I have a Synology DS224+ NAS running DSM 7.3.2-86009 Update 3 that has been crashing repeatedly over the past month. The unit (which is less than a year old, with brand new Synology drives) runs 24/7 in my empty house while I'm long-term away in another country, making physical…

• Mention Let's Encrypt certs renew but have stopped automatically applying on reverse proxies · Reddit · 2026-06-09

  I've got a few Let's Encrypt certs, some on web sites and some on reverse proxies. The web sites renew and apply okay. The reverse proxy certs do renew and I can see them in the cert list showing as valid and expiry a couple of months from now, but the proxies remain using the o…

• Mention DS-918+ Firmware · Reddit · 2026-06-04

  So, My current version of DSM is 7.1.1-42962 Update 9 and it says that it is up to date. This version was pushed out about 11 months ago. Why isn't my NAS using the latest Version: 7.3.2-86009 Update 3?

• Mention UPS not connected? · Reddit · 2026-05-18

  My DS923+ is powered via a UPS and connected with USB. I turn off the mains to simulate a power outage and the NAS shutsdown itself after 30 seconds which I had set, everything is setup and working properly. One day, I go to control panel>Hardware & Power and under UPS, I notice…

• Mention I got a generic Marvell/Aquantia AQC107 10GbE card working on Synology DSM 7.2 (Avoton) · Reddit · 2026-05-11

  I finally (with help from Claude) got a generic Marvell/Aquantia AQC107 based 10GbE NIC (ASUS XG-C100C) working on a Avoton-based Synology running DSM 7.2 and decided to share the module/scripts: https://github.com/mrk1987/synology-avoton-aqc107 This is for older Avoton units wh…

• Mention Issue with RX418 and RS1221+ (drives not showing up) · Reddit · 2026-05-07

  I'm running a RS1221+ with 16GB RAM and 8x 12TB drives installed. I also have the E10M20-T1 card with 2x 1TB SSDs used for cache, and I'm using the card's 10G NIC for the server's main network connection. DSM is up-to-date, running 7.3.2-86009 Update 3. It's been running great f…

• Mention Extra HDD Added - doesn't increase Storage Pool? · Reddit · 2026-05-04

  Hi All, Seeking some advice, I have a DS 224, running DSM 7.3.2 Update 3, and have added a second (same size) HDD to Storage Pool 1. Both seem to be now loaded into Storage Pool 1, but can't work out why my total HDD capacity hasn't increased? Any ideas where I went wrong? Belie…

• Mention Losing my mind with OpenClaw on Synology DS923+ Sticking on the "Allowed Origins" · Reddit · 2026-04-30

  I’m trying to move my OpenClaw setup onto my Synology DS923+ via Docker to save on VPS costs, but I can’t get past the login screen. The Setup: Hardware: Synology DS923+ Upgraded with 16GB RAM and Cache NVMe (DSM 7.3.2-86009 Update 3) Image: ghcr.io/openclaw/openclaw:latest The…

• Mention [Need help; unsure what steps to take next] DS920 - bad sector reported > started data scrubbing > no end in sight > storage manager unresponsive · Reddit · 2026-04-17

  Update #3: ~19 April: per Synology support's instructions, confirmed Drive1 has failed; & the abnormal performance is due to DSM being mirrored across all drives & afflicted by Drive1's failure. Once I removed Drive1, I was able to access DSM readily, & more importantly, Storage…

Reports are found automatically and labelled by an AI model plus keyword rules — they can be wrong. Open the post to judge for yourself.

← Synology DSM 7.3.2-86009 Update 2 · Synology DSM 7.3.2-86009 Update 4 →

Other Synology DSM versions

• 7.4.1-90080 Update 1 2026-10-12
• 7.3.2-86009 Update 5 2026-10-12
• 7.2.2-72806 Update 10 2026-10-12
• 7.2.1-69057 Update 13 2026-10-12
• 7.4.1-90080 2026-07-23
• 7.3.2-86009 Update 4 2026-06-30
• 7.2.2-72806 Update 9 2026-06-30
• 7.2.1-69057 Update 12 2026-06-30