<p>Microsoft announced Wednesday afternoon that it has pulled MS13-061, one of the patches issued yesterday for vulnerabilities in Exchange Server 2013.</p><p>Microsoft said the patch is causing issues with the content index for mailbox databases. Organizations would still be able to send and receive email, but would not be able to search for messages on the server.</p><p>"After the installation of the security update, the content index for mailbox databases shows as Failed and the Microsoft Exchange Search Host Controller service is renamed," Microsoft principal program manager Ross Smith said in a post on the company's Exchange site.</p><p>Smith added that patches for Exchange 2007 and 2010 were not pulled back because both use a different indexing architecture and are not impacted.</p><p><a href="http://threatpost.com/microsoft-pulls-back-critical-exchange-server-2013-patch">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.computing.co.uk/ctg/news/2289493/microsoft-withdraws-patches-after-reports-of-crashes-on-windows-and-exchange">Microsoft withdraws patches after reports of crashes on Windows and Exchange</a> (Computing)</p><p><a href="http://www.cbronline.com/news/social/microsoft-pulls-defective-exchange-2013-security-patch-160813">Microsoft pulls defective Exchange 2013 security patch</a> (Computer Business Review)</p><p><a href="http://www.fiercecio.com/techwatch/story/microsoft-recalls-problematic-exchange-security-patch/2013-08-16">Microsoft recalls problematic Exchange security patch</a> (FierceCIO)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dZh-8QURS5xF5nMiATKbV-cNbAoxM&ned=us">7 additional articles.</a></p>