diff --git a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs
index 7c57d9532b4..d15d239cb30 100644
--- a/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs
+++ b/src/Microsoft.PowerShell.ConsoleHost/host/msh/ConsoleHostUserInterface.cs
@@ -1790,11 +1790,18 @@ private string ReadLineFromConsole(bool endOnTab, string initialContent, bool ca
                         continue;
                     }
 
+                    // Handle case where terminal gets reset and the index is outside of the buffer
+                    if (index > s.Length)
+                    {
+                        index = s.Length;
+                    }
+
                     // Modify string
-                    if (!insertMode) // then overwrite mode
+                    if (!insertMode && index < s.Length) // then overwrite mode
                     {
                         s = s.Remove(index, 1);
                     }
+
                     s = s.Insert(index, keyInfo.KeyChar.ToString());
                     index++;