diff --git a/src/single_window/render_callback_func.cpp b/src/single_window/render_callback_func.cpp
index 5e19a36..8360bde 100644
--- a/src/single_window/render_callback_func.cpp
+++ b/src/single_window/render_callback_func.cpp
@@ -277,8 +277,13 @@ void Render::OnReceiveDataBufferCb(const char *data, size_t size,
     return;
   }
 
+  if (size < sizeof(RemoteAction)) {
+    LOG_ERROR("Received data too small for RemoteAction");
+    return;
+  }
+
   RemoteAction remote_action;
-  memcpy(&remote_action, data, size);
+  memcpy(&remote_action, data, sizeof(remote_action));
 
   std::string remote_id(user_id, user_id_size);
   if (render->client_properties_.find(remote_id) !=
diff --git a/thirdparty/projectx b/thirdparty/projectx
index 78804fc..6d4feff 160000
--- a/thirdparty/projectx
+++ b/thirdparty/projectx
@@ -1 +1 @@
-Subproject commit 78804fce8143907f0aa873c4b4481d6bbf229ee1
+Subproject commit 6d4feff3150187dc08091021f63fcbc7ac26fd03