diff --git a/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClientBase.java b/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClientBase.java
index 12f3430ddb4f..36aeea3d9a5d 100644
--- a/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClientBase.java
+++ b/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClientBase.java
@@ -530,6 +530,8 @@ AccessToken getTokenFromAzureCLIAuthentication(StringBuilder azCommand) {
             }
 
             ProcessBuilder builder = new ProcessBuilder(starter, switcher, azCommand.toString());
+            // Redirects stdin to dev null, helps to avoid messages sent in by the cmd process to upgrade etc.
+            builder.redirectInput(ProcessBuilder.Redirect.from(IdentityUtil.NULL_FILE));
 
             String workingDirectory = getSafeWorkingDirectory();
             if (workingDirectory != null) {
@@ -619,6 +621,8 @@ AccessToken getTokenFromAzureDeveloperCLIAuthentication(StringBuilder azdCommand
             }
 
             ProcessBuilder builder = new ProcessBuilder(starter, switcher, azdCommand.toString());
+            // Redirects stdin to dev null, helps to avoid messages sent in by the cmd process to upgrade etc.
+            builder.redirectInput(ProcessBuilder.Redirect.from(IdentityUtil.NULL_FILE));
 
             String workingDirectory = getSafeWorkingDirectory();
             if (workingDirectory != null) {
diff --git a/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/util/IdentityUtil.java b/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/util/IdentityUtil.java
index 6e993e5e435c..234beb9c36a1 100644
--- a/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/util/IdentityUtil.java
+++ b/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/util/IdentityUtil.java
@@ -11,6 +11,7 @@
 import com.azure.identity.BrowserCustomizationOptions;
 import com.azure.identity.implementation.IdentityClientOptions;
 
+import java.io.File;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
@@ -22,6 +23,8 @@ public final class IdentityUtil {
     public static final String ALL_TENANTS = "*";
     public static final String DEFAULT_TENANT = "organizations";
 
+    public static final File NULL_FILE =
+        new File((System.getProperty("os.name").startsWith("Windows") ? "NUL" : "/dev/null"));
 
     private IdentityUtil() { }
     /**