diff --git a/tools/dump/include/shell_command.h b/tools/dump/include/shell_command.h
index 49252fabc5126327c8a6d6373a6950fd6617015a..36f6644693df00a5dca57f3163403bc59c46a80a 100644
--- a/tools/dump/include/shell_command.h
+++ b/tools/dump/include/shell_command.h
@@ -94,6 +94,7 @@ public:
 
 protected:
     static constexpr int32_t MIN_ARGUMENT_NUMBER = 2;
+    static constexpr int32_t MAX_ARGUMENT_NUMBER = 256;
 
     int argc_;
     char **argv_;
diff --git a/tools/dump/src/shell_command.cpp b/tools/dump/src/shell_command.cpp
index 62a4ac25d8afa408deb722b2d9d7b21c82788858..7ae734a177553089dde6c0e0c3e4635ba50ac0dc 100644
--- a/tools/dump/src/shell_command.cpp
+++ b/tools/dump/src/shell_command.cpp
@@ -26,7 +26,7 @@ ShellCommand::ShellCommand(int argc, char *argv[], std::string name)
     argc_ = argc;
     argv_ = argv;
     name_ = name;
-    if (argc < MIN_ARGUMENT_NUMBER) {
+    if (argc < MIN_ARGUMENT_NUMBER || argc > MAX_ARGUMENT_NUMBER) {
         cmd_ = "help";
         return;
     }