diff --git a/src/apps/relay/turn_admin_server.c b/src/apps/relay/turn_admin_server.c
index 7ad2ab15..965a2336 100644
--- a/src/apps/relay/turn_admin_server.c
+++ b/src/apps/relay/turn_admin_server.c
@@ -1202,7 +1202,11 @@ static void web_admin_input_handler(ioa_socket_handle s, int event_type,
 	int to_be_closed = 0;
 
 	int buffer_size = (int)ioa_network_buffer_get_size(in_buffer->nbh);
-	if (buffer_size > 0) {
+	if (buffer_size >= UDP_STUN_BUFFER_SIZE) {
+		TURN_LOG_FUNC(TURN_LOG_LEVEL_WARNING, "%s: request is too big: %d\n", __FUNCTION__,  buffer_size);
+		to_be_closed = 1;
+	}
+	else if (buffer_size > 0) {
 		
 		SOCKET_TYPE st = get_ioa_socket_type(s);