diff --git a/.globalconfig b/.globalconfig
index d51e5cfacfa..f1511f2b5d2 100644
--- a/.globalconfig
+++ b/.globalconfig
@@ -558,6 +558,10 @@ dotnet_diagnostic.CA2015.severity = warning
 # https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2016
 dotnet_diagnostic.CA2016.severity = suggestion
 
+# CA2020: Prevent behavioral change
+# https://learn.microsoft.com/en-gb/dotnet/fundamentals/code-analysis/quality-rules/ca2020
+dotnet_diagnostic.CA2020.severity = warning
+
 # CA2100: Review SQL queries for security vulnerabilities
 # https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2100
 dotnet_diagnostic.CA2100.severity = none
diff --git a/src/System.Management.Automation/engine/remoting/fanin/WSManNativeAPI.cs b/src/System.Management.Automation/engine/remoting/fanin/WSManNativeAPI.cs
index 289f88c576f..c995e343db4 100644
--- a/src/System.Management.Automation/engine/remoting/fanin/WSManNativeAPI.cs
+++ b/src/System.Management.Automation/engine/remoting/fanin/WSManNativeAPI.cs
@@ -1121,7 +1121,7 @@ internal WSManOptionSet(WSManOption[] options)
                     // Look at the structure of native WSManOptionSet.. Options is a pointer..
                     // In C-Style array individual elements are continuous..so I am building
                     // continuous array elements here.
-                    Marshal.StructureToPtr(options[index], (IntPtr)(_optionSet.options.ToInt64() + (sizeOfOption * index)), false);
+                    Marshal.StructureToPtr(options[index], _optionSet.options + (sizeOfOption * index), false);
                 }
 
                 _data = MarshalledObject.Create<WSManOptionSetStruct>(_optionSet);
diff --git a/src/powershell/Program.cs b/src/powershell/Program.cs
index 70346a1d1ce..1b50f40e2f8 100644
--- a/src/powershell/Program.cs
+++ b/src/powershell/Program.cs
@@ -116,7 +116,7 @@ private static void AttemptExecPwshLogin(string[] args)
                 // Read the symlink to the startup executable
                 IntPtr linkPathPtr = Marshal.AllocHGlobal(LINUX_PATH_MAX);
                 IntPtr bufSize = ReadLink("/proc/self/exe", linkPathPtr, (UIntPtr)LINUX_PATH_MAX);
-                pwshPath = Marshal.PtrToStringAnsi(linkPathPtr, (int)bufSize);
+                pwshPath = Marshal.PtrToStringAnsi(linkPathPtr, checked((int)bufSize));
                 Marshal.FreeHGlobal(linkPathPtr);
 
                 ArgumentNullException.ThrowIfNull(pwshPath);