Microsoft's admitted that some Office 2007 users didn't get several Patch Tuesday patches on 8 May. Microsoft said its security update services failed to deploy the Office 2007 fixes.
"We have updated the detection logic for the 8 May security and non-security updates for Office 2007," said Mark Griesi, a programme manager with the MSRC (Microsoft Security Response Center). Griesi urged users to run Windows Update or WSUS again to guarantee that Office 2007 is up to date.
"In some cases, the original detection logic may not have offered the updates or the updates may not have been installed successfully on systems running Windows Vista.”
Only Vista users with Office 2007 on their hard drives who rely on Microsoft Update or WSUS (Windows Server Update Services) for patches were affected, Microsoft said.
The updates that may not have been deployed two weeks ago included ones for Excel 2007 and Office 2007 in general. All were rated "important" - the second-highest ranking in Microsoft's four-level threat system.
"There has been no change to the actual binaries in the updates themselves," said Griesi. "If you have already successfully installed the updates using Microsoft Update, you will not be offered the update again."
Administrators running WSUS must re-approve the updates, and end users served by WSUS will also be prompted again to install the fixes if they weren't installed correctly when the bulletins were first released.