Synology releases DSM 7.1.1-42951

Back at it again with another update.

Synology has released yet another version of its polished NAS operating system, DiskStation Manager (DSM). Version 7.1.1-42951 is available for most NAS enclosures released within the last handful of years. This guide will showcase what’s new and how to install it on your Synology NAS.

What’s new in Synology DSM 7.1.1-42951?

This release of DSM is a fairly chunky one, containing numerous fixes and some notable changes. Here’s everything included in the latest version of Synology’s NAS OS.


  • Added support for recipient profiles for email notifications, allowing users to add multiple email addresses under each profile and customize rules for the profiles.
  • Users can now enable the quota setting for shared folders that are located on volumes with data deduplication enabled.
  • Added support for RAID arrays with 16 and 20 hard drives when creating RAID groups.
  • Supports checking the 2-factor authentication status of user accounts at Control Panel > User & Group > Users.


  • Fixed an issue where the “Enable UID/GID shifting” setting would be deactivated after modifying the time interval for updating the user/group list on an LDAP client.
  • Fixed multiple security vulnerabilities regarding CIFS-utils (CVE-2022-27239, CVE-2022-29869).
  • Fixed a security vulnerability regarding OpenLDAP (CVE-2022-29155).
  • Fixed a security vulnerability regarding cURL (CVE-2022-22576).
  • Fixed a security vulnerability regarding Zlib (CVE-2018-25032).
  • Fixed a security vulnerability regarding Freetype (CVE-2022-27406).
  • Fixed multiple security vulnerabilities regarding 802.1X (CVE-2021-30004, CVE-2021-30266).
  • Fixed multiple security vulnerabilities regarding GNU C Library(CVE-2021-43396, CVE-2022-23218, CVE-2022-23219).
  • Fixed multiple security vulnerabilities regarding YAML-cpp (CVE-2018-20573, CVE-2018-20574, CVE-2019-6285).
  • Fixed multiple security vulnerabilities regarding Linux Kernel (CVE-2019-11477, CVE-2019-11478, CVE-2019-11479, CVE-2020-12770, CVE-2019-18282, CVE-2019-19527, CVE-2019-19532, CVE-2019-19537, CVE-2021-0605, CVE-2021-3732, CVE-2021-3739, CVE-2021-3753, CVE-2021-4149, CVE-2021-4203, CVE-2021-20317, CVE-2021-20321, CVE-2021-20322, CVE-2021-29154, CVE-2021-29650, CVE-2021-34556, CVE-2021-35477, CVE-2021-39633, CVE-2021-39698, CVE-2021-45868, CVE-2022-0185, CVE-2022-0330, CVE-2022-0617, CVE-2022-0847, CVE-2022-1011, CVE-2022-1048, CVE-2022-1055, CVE-2022-1353, CVE-2022-20008, CVE-2022-27666, CVE-2022-28893, CVE-2022-29582).
  • Updated OpenSSL to version 1.1.1o to fix multiple security vulnerabilities (CVE-2022-1292, CVE-2021-3712, CVE-2022-0778).
  • Updated libarchive to version 3.6.1 to fix multiple security vulnerabilities (CVE-2021-36976, CVE-2022-26280).
  • Updated Mbed-TLS to version 2.28 to fix multiple security vulnerabilities (CVE-2021-44732, CVE-2021-45450, CVE-2021-43666).
  • Updated Python to version 3.8.12 to fix multiple security vulnerabilities (CVE-2021-3733, CVE-2021-3737, CVE-2022-0391).
  • Updated Redis to version 6.2.7 to fix multiple security vulnerabilities (CVE-2022-24735, CVE-2022-24736).
  • Updated ISC DHCP to version 4.4.3 to fix a security vulnerability (CVE-2021-25217).

How to install this Synology DSM update

The latest release of DiskStation Manager 7.1 is the latest version of the operating system available for Synology NAS enclosures. I’ve already gone over all the NAS that are supported, as well as what was included at launch in a separate article, so be sure to check that out for more details.

Running the best NAS from Synology, you should be set to receive this latest release of the OS. By default, a Synology NAS will automatically download and apply this update, but if you wish to do so manually, here’s how to go about it.

  • Back up your NAS!
  • Visit Synology Download Center.
  • Select your NAS model using the drop-down menus.
  • Click on All Downloads under DSM 7.1.
  • Click on 7.1.1-42951.
  • Select the corresponding folder that matches your NAS.
  • Log into your NAS.
  • Go to Control Panel > Update & Restore > Manual DSM Update.
  • Click Browse and select the downloaded DSM 7.1 update file.
  • Click OK to update DSM.

By Richard Edmonds

Richard has been covering the technology industry for more than a decade. He has spent more time tinkering inside a PC chassis than anywhere else, for better or worse.

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