A security flaw in software that ships with two of Hewlett-Packard Color LaserJet printers could open a door for cybersnoops, HP has warned. The vulnerability lies in the Toolbox software that comes with HP’s Color LaserJet 2500 and 4600 printers, the company said. The flaw could allow a remote, unauthorized malicious user to retrieve arbitrary files from a Windows computer when the software is running in the default configuration. The Toolbox is software that installs on a PC along with the drivers.