If you were wondering if NVIDIA products are vulnerable to some of the latest security threats, the answer is yes. Your Shield device or GPU is not vulnerable to CVE-2017-5754, aka Meltdown, however the two variants of Spectre could theoretically be used to infect you.

Variant 1 (CVE-2017-5753) : Mitigations are provided with the security update included in this bulletin. NVIDIA expects to work together with its ecosystem partners on future updates to further strengthen mitigations.

Variant 2 (CVE-2017-5715) : Mitigations are provided with the security update included in this bulletin. NVIDIA expects to work together with its ecosystem partners on future updates to further strengthen mitigations.

Variant 3 (CVE-2017-5754): At this time, NVIDIA has no reason to believe that Shield TV/tablet is vulnerable to this variant.

The Android based Shield tablet should be updated to Shield Experience 5.4, which should arrive before the end of the month. Your Shield TV, should you actually still have a working on will receive Shield Experience 6.3 along the same time frame.

The GPU is a little more complex as there are several product lines and OSes which need to be dealt with. There should be a new GeForce driver appearing early next week for gaming GPUs, with HPC cards receiving updates on the dates you can see below.

There is no reason to expect Radeon and Vega GPUs to suffer from these issues at this time. Intel could learn a bit from NVIDIA's response, which has been very quick and includes ther older hardware.