diff --git a/common_modules/module_manager/inc/txm_module_manager_dispatch.h b/common_modules/module_manager/inc/txm_module_manager_dispatch.h
index 4f30ad26..0ac2210d 100644
--- a/common_modules/module_manager/inc/txm_module_manager_dispatch.h
+++ b/common_modules/module_manager/inc/txm_module_manager_dispatch.h
@@ -1,5 +1,6 @@
 /***************************************************************************
- * Copyright (c) 2024 Microsoft Corporation 
+ * Copyright (c) 2024 Microsoft Corporation
+ * Copyright (c) 2025 Eclipse ThreadX Contributors
  * 
  * This program and the accompanying materials are made available under the
  * terms of the MIT License which is available at
@@ -2389,6 +2390,11 @@ static ALIGN_TYPE _txm_module_manager_tx_thread_preemption_change_dispatch(TXM_M
 
 ALIGN_TYPE return_value;
 
+    if (param_1 < module_instance -> txm_module_instance_maximum_priority)
+    {
+        return(TX_THRESH_ERROR);
+    }    
+
     if (module_instance -> txm_module_instance_property_flags & TXM_MODULE_MEMORY_PROTECTION)
     {
         if (!TXM_MODULE_MANAGER_PARAM_CHECK_OBJECT_FOR_USE(module_instance, param_0, sizeof(TX_THREAD)))
@@ -2418,6 +2424,11 @@ static ALIGN_TYPE _txm_module_manager_tx_thread_priority_change_dispatch(TXM_MOD
 
 ALIGN_TYPE return_value;
 
+    if (param_1 < module_instance -> txm_module_instance_maximum_priority)
+    {
+        return(TX_PRIORITY_ERROR);
+    }    
+
     if (module_instance -> txm_module_instance_property_flags & TXM_MODULE_MEMORY_PROTECTION)
     {
         if (!TXM_MODULE_MANAGER_PARAM_CHECK_OBJECT_FOR_USE(module_instance, param_0, sizeof(TX_THREAD)))