Microsoft is to release three security patches for its Exchange e-mail server and the Windows OS next Tuesday. At least two of the fixes are deemed “critical” by the company.
The 9 May release, part of the company’s monthly scheduled patching cycle, will include one critical patch for Exchange and two for Windows, at least one of which is critical.
It is not known whether the Windows patches include fixes for two critical vulnerabilities in the Internet Explorer browser, discovered by security researchers in the past week.
Microsoft said the Exchange update would include the functionality change discussed in Microsoft Knowledge Base article 912918.
“Administrators are urged to review this Knowledge Base article prior to release and take steps appropriate for their environment,” said the company.
The company will also update its Windows Malicious Software Removal Tool via Windows Update, Microsoft Update, Windows Server Update Services and Download Centre channels.
Microsoft said it would also be releasing a number of “high priority” updates for its software on the same day, which are not connected to security issues.