Quick Tip: SQL Server Support for TLS 1.2

Quick Tip: SQL Server Support for TLS 1.2

Quick Tip: SQL Server Support for TLS 1.2

It is a recommended security best practice, to upgrade to Transport Layer Security (TLS) protocol 1.2 as several known vulnerabilities have been reported against SSL and earlier versions of TLS. Many of us who work with SQL Server, we needed – or will need at a point – to check SQL Server’s Support for TLS 1.2 and probably come up with an action plan.

SQL Server 2016 and SQL Server 2017 ship with TLS 1.0 to TLS 1.2 support, so you do not need to install any TLS-related patches for these two versions of SQL Server in order to enabled TLS 1.2 because it is supported by default.

Now, regarding the rest of the officially supported SQL Server versions (2008, 2008 R2, 2012, and 2014), Microsoft has released a Support KB article that features a table with the below information:

  • SQL Server Release
  • First build that supports TLS 1.2
  • Download link for earlier builds
  • Additional information

Using the information on the above table, you can check if your current version/build of SQL Server supports TLS 1.2 or if you need to install a Cumulative Update (CU) or just a specific patch.

As a side note, you should always keep your SQL Server instances patched up to the latest Service Pack (SP) or Cumulative Update (CU), after of course you first thoroughly test the SP or CU on a non-production environment and ensure that everything works well.

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Artemakis Artemiou
Artemakis Artemiou is a Senior SQL Server and Software Architect, Author, and a 9 Times Microsoft Data Platform MVP (2009-2018). He has over 15 years of experience in the IT industry in various roles. Artemakis is the founder of SQLNetHub and TechHowTos.com. Artemakis is the creator of the well-known software tools Snippets Generator and DBA Security Advisor. Also, he is the author of many eBooks on SQL Server. Artemakis currently serves as the President of the Cyprus .NET User Group (CDNUG) and the International .NET Association Country Leader for Cyprus (INETA). Artemakis's official website can be found at aartemiou.com.