diff --git a/MdeModulePkg/Core/Dxe/Dispatcher/Dependency.c b/MdeModulePkg/Core/Dxe/Dispatcher/Dependency.c
index e489547302..e38605e4c4 100644
--- a/MdeModulePkg/Core/Dxe/Dispatcher/Dependency.c
+++ b/MdeModulePkg/Core/Dxe/Dispatcher/Dependency.c
@@ -220,6 +220,9 @@ CoreIsSchedulable (
   EFI_GUID    DriverGuid;
   VOID        *Interface;
 
+  Operator = FALSE;
+  Operator2 = FALSE;
+
   if (DriverEntry->After || DriverEntry->Before) {
     //
     // If Before or After Depex skip as CoreInsertOnScheduledQueueWhileProcessingBeforeAndAfter ()
diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
index d5ef60b7f5..ded9820def 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/ConfigRouting.c
@@ -868,6 +868,7 @@ ParseIfrData (
   TempStr          = NULL;
   BlockData        = NULL;
   DefaultData      = NULL;
+  VarDefaultName   = 0;
 
   //
   // Go through the form package to parse OpCode one by one.