diff --git a/include/onnxruntime/core/providers/tensorrt/tensorrt_provider_options.h b/include/onnxruntime/core/providers/tensorrt/tensorrt_provider_options.h
index 5e5319a34ee9f..95a59d83fbfcd 100644
--- a/include/onnxruntime/core/providers/tensorrt/tensorrt_provider_options.h
+++ b/include/onnxruntime/core/providers/tensorrt/tensorrt_provider_options.h
@@ -90,4 +90,5 @@ struct OrtTensorRTProviderOptionsV2 {
   const char* trt_op_types_to_exclude{"NonMaxSuppression,NonZero,RoiAlign"};  // Exclude specific ops from running on TRT.
                                                                               // There is a known performance issue with the DDS ops (NonMaxSuppression, NonZero and RoiAlign) from TRT versions 10.0 to 10.7.
                                                                               // TRT EP excludes DDS ops from running on TRT by default, user can override default value with empty string to include all ops.
+  int trt_op_types_to_exclude_str_is_dynamic_allocation = 0;                  // Indicate trt_op_types_to_exclude points to a static allocation or dynamic allocation. It's for internal use to free the dynamic allocation buffer.
 };
diff --git a/onnxruntime/core/providers/tensorrt/tensorrt_execution_provider_info.cc b/onnxruntime/core/providers/tensorrt/tensorrt_execution_provider_info.cc
index bc0d00ec6791f..429cc293f5dd8 100644
--- a/onnxruntime/core/providers/tensorrt/tensorrt_execution_provider_info.cc
+++ b/onnxruntime/core/providers/tensorrt/tensorrt_execution_provider_info.cc
@@ -360,6 +360,9 @@ void TensorrtExecutionProviderInfo::UpdateProviderOptions(void* provider_options
   trt_provider_options_v2.trt_engine_hw_compatible = internal_options.engine_hw_compatible;
   trt_provider_options_v2.trt_onnx_bytestream = internal_options.onnx_bytestream;
   trt_provider_options_v2.trt_onnx_bytestream_size = internal_options.onnx_bytestream_size;
-  trt_provider_options_v2.trt_op_types_to_exclude = copy_string_if_needed(internal_options.op_types_to_exclude);
+  if (options.find("trt_op_types_to_exclude") != options.end()) {
+    trt_provider_options_v2.trt_op_types_to_exclude = copy_string_if_needed(internal_options.op_types_to_exclude);
+    if (string_copy) trt_provider_options_v2.trt_op_types_to_exclude_str_is_dynamic_allocation = 1;
+  }
 }
 }  // namespace onnxruntime
diff --git a/onnxruntime/core/session/provider_bridge_ort.cc b/onnxruntime/core/session/provider_bridge_ort.cc
index 0aa93bce354e8..770c93a750e8f 100644
--- a/onnxruntime/core/session/provider_bridge_ort.cc
+++ b/onnxruntime/core/session/provider_bridge_ort.cc
@@ -2413,7 +2413,7 @@ ORT_API(void, OrtApis::ReleaseTensorRTProviderOptions, _Frees_ptr_opt_ OrtTensor
     delete[] ptr->trt_profile_opt_shapes;
     delete[] ptr->trt_ep_context_file_path;
     delete[] ptr->trt_onnx_model_folder_path;
-    if (!ptr->trt_op_types_to_exclude) delete[] ptr->trt_op_types_to_exclude;
+    if (ptr->trt_op_types_to_exclude && ptr->trt_op_types_to_exclude_str_is_dynamic_allocation) delete[] ptr->trt_op_types_to_exclude;
   }
 
   std::unique_ptr<OrtTensorRTProviderOptionsV2> p(ptr);