The discovery is the latest twist in a monthslong saga around the disclosure of Meltdown and Spectre.

The company disputes the claims and says it is fighting all the lawsuits "vigorously."

Social media is filled with reports of problems and time lost to the buggy patches.

The "easily exploitable" vulnerabilities allow a hacker to stage a "virtual machine escape" to attack the host operating system.

Top Republicans on the House Committee on Energy and Commerce want to know why top tech companies sat on the chip flaws for more than six months.

Information on new patches is expected later this week.