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VMware ESXi 5.5, Patch Release ESXi550-201512001 (2135410)

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Release Date: December 8, 2015

Important: Always upgrade vCenter Server to version 5.5 Update 3b before you update ESXi to ESXi 5.5 Update 3b to avoid issues due to interoperability implication relating to SSLv3 disablement.

vCenter Server will not be able to manage ESXi 5.5 Update 3b hosts if you update the ESXi hosts before updating vCenter Server to version 5.5 Update 3b. VMware best practices states that the vCenter Server should be upgraded prior to upgrading the managed ESXi hosts. For more information, see After upgrading an ESXi 5.5 host to Update 3b and later, the host is no longer manageable by vCenter Server (2140304)

For more information on the order in which to upgrade your vSphere environment, see Update sequence for VMware vSphere 5.5 and its compatible VMware products (2057795).

For more information surrounding the SSLv3 disablement, refer to VMware ESXi 5.5 Update 3b Release Notes and VMware vCenter Server 5.5 Update 3b Release Notes.

Download Filename:

3247226 (Security-only)
Download Size:
699.2 MB


Host Reboot Required: Yes

Virtual Machine Migration or Shutdown Required: Yes


This release contains general and security-only bulletins. Security-only bulletins are applicable to new security fixes only. No new bug fixes are included, but bug fixes from prior patch/update releases are included.

If the installation of all new security and bug fixes is required, you must apply all bulletins in this release. In some cases, the general release bulletin will supersede the security- only bulletin. This is not an issue as the general release bulletin contains both the new security and bug fixes.

The bulletin IDs of security-only bulletins end with an “SG” suffix.


Bulletin ID Category Severity Knowledge Base Article
ESXi550-201512401-BG Bug Fix Critical 2135436
ESXi550-201512402-BG Bug Fix Important 2135792
ESXi550-201512403-BG Bug Fix Important 2135793
ESXi550-201512404-BG Bug Fix Critical 2135794
ESXi550-201512101-SG Security Important2135795
ESXi550-201512102-SG Security Important 2135796


Image Profiles

Starting with ESXi 5.0 Update 1, VMware patch and update releases contain general and security-only image profiles. Security-only image profiles are applicable to new security fixes only. No new bug fixes are included, but bug fixes from earlier patch/update releases are included.

The general release image profile supersedes the security-only profile. Application of the general release image profile applies to new security and bug fixes.

The security-only image profiles are identified with the additional "s" identifier in the image profile name.

Image Profile Name Knowledge Base Article


For information on patch and update classification, see KB 2014447.


Summaries and Symptoms

This patch release contains the bug fixes for ESXi. For more information, see the KB articles for the individual bulletins.
For information about the issues fixed with the ESXi-5.5.0-20151204001-standard image profile, see KB 2135797.
For information about the issues fixed with the ESXi-5.5.0-20151204001-no-tools image profile, see KB 2135798.
For information about the issues fixed with the ESXi-5.5.0-20151201001s-standard image profile, see KB 2135799.
For information about the issues fixed with the ESXi-5.5.0-20151201001s-no-tools image profile, see KB 2135800.

Deployment Considerations

None beyond the required patch bundles and reboot information listed in the respective KB articles.

Patch Download and Installation

The typical way to apply patches to ESXi hosts is through the VMware Update Manager. For details, see the Installing and Administering VMware vSphere Update Manager.
ESXi hosts can be updated by manually downloading the patch ZIP file from the VMware download page and installing the VIB by using the esxcli software vib command. Additionally, the system can be updated using the image profile and the esxcli software profile command. For details, see the vSphere Command-Line Interface Concepts and Examples and the vSphere Upgrade Guide.

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