The computer network on the U.S. Navy's newest class of coastal warships showed vulnerabilities in Navy cybersecurity tests, but the issues were not severe enough to prevent an eight-month deployment to Singapore, a Navy official said, according to Reuters.

A Navy team of computer hacking experts found some deficiencies when assigned to try to penetrate the network of the USS Freedom, the lead vessel in the $37 billion Littoral Combat Ship program, said the official, who spoke on condition of anonymity.

The Freedom arrived in Singapore last week for an eight-month stay, which its builder, Lockheed Martin Corp. , hopes will stimulate Asian demand for the fast, agile and stealthy ships.

"We do these types of inspections across the fleet to find individual vulnerabilities, as well as fleet-wide trends," said the official.