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Spectre and Meltdown mitigation information
VMware is shipping CPU microcode updates with the latest ESXi (6.5, 6.0 and 5.5) patches that help mitigate the Intel CPU bug issues known as Spectre and Meltdown. This package does NOT include these fixes. Please apply the latest ESXi patches instead!





CPU Microcode Updates from Intel (20150107) and AMD (20141028) for ESXi 5.x. This includes all published updates as of the mentioned date. Use at your own risk!

Not compatible with ESXi 6.*.

For an ESXi 6.* compatible version see cpu-microcode

Vendor (Vendor Code)

VFrontDe (VFT)

Current Version


Acceptance Level


Dependencies and Restrictions

Requires: ESXi version 5.0 to 5.5 (incompatible with 6.0)

Package Properties

Requires MaintMode Live Install Allowed Live Remove Allowed Stateless Ready Overlay
No Yes Yes Yes No

Additional links

Direct Download links