The next cumulative update is available. It now needs to install SP1 before you install post SP1 updates. See also http://blogs.technet.com/b/stefan_gossner/archive/2012/07/11/is-sp1-installed-on-your-sharepoint-2010-farm.aspx
MSF2010: 2596957 The full server package for Microsoft SharePoint Foundation 2010 http://support.microsoft.com/default.aspx?scid=kb;EN-US;2596957
Download link: http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=2596957&kbln=en-us
SPS2010: 2596955 The full server package for SharePoint Server 2010 and contains also the MSF2010 fixes so you need only this one package. http://support.microsoft.com/default.aspx?scid=kb;EN-US;2596955 The KB article might have a delay to be public.
Download link: http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=2596955&kbln=en-us
Important for all Server Applications listed above: After applying the preceding updates, run the SharePoint Products and Technologies Configuration Wizard or “psconfig –cmd upgrade –inplace b2b -wait” in command line. This needs to be done on all servers in the farm with SharePoint installed. You can run psconfig in parallel on all SharePoint machines.
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