Today the Exchange CXP team released the following update rollups to the Download Center. All three releases cover Security Bulletin MS13-012 (KB 2809279). Because this is a security release, the updates will also be available on Microsoft Update.

Update Rollup 6 for Exchange Server 2010 Service Pack 2

Update Rollup 10 for Exchange Server 2007 Service Pack 3

Update Rollup 6 for Exchange Server 2010 SP2:

This update contains a number of customer reported and internally found issues. In particular we would like to specifically call out the following fixes which are included in this release:

Note: Some of the following KB articles may not be available at the time of publishing this post.

2489941 The "legacyExchangeDN" value is shown in the "From" field instead of the "Simple Display Name" in an email message in an Exchange Server 2010 environment

2779387 Duplicated email messages are displayed in the Sent Items folder in a EWS-based application that accesses an Exchange Server 2010 Mailbox server

2751581 OAB generation fails with event IDs 9126, 9330, and either 9338 or 9339 in an Exchange Server 2010 environment

2784081 Store.exe process crashes if you add certain registry keys to an Exchange Server 2010 Mailbox server

Update Rollup 10 for Exchange Server 2007 SP3:

This update contains a number of customer reported and internally found issues. In particular we would like to specifically call out the following fixes which are included in this release:

2783779 A hidden user is still displayed in the Organization information of Address Book in OWA in an Exchange Server 2007 environment

Note: Exchange 2007 SP3 RU10 allows Exchange 2007 servers to coexist with Exchange 2013 CU1, which is also scheduled to be released in Q1 2013. Customers can test and validate this update in a representative lab environment prior to rolling out in their production environments as an important coexistence preparatory step before introducing Exchange Server 2013 CU1.

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Exchange Team