Redmond (WA) - Microsoft today issued its July security update, which includes five bug fixes for remote execution vulnerabilities as well as a patch for the firewall in Windows Vista.

The update covers security bulletins MS07-36 through 41 and fixes foremost a previously disclosed critical remote execution vulnerability in Excel as well as two privately reported critical remote execution vulnerabilities in Windows Active Directory and the .Net framework.

Two addititional remote execution vulnerabilities in the Publisher application as well as Windows XP Professional are labeled as “important”. Also addressed is a firewall vulnerability in Windows Vista, which could allow incoming “unsolicited” network traffic to access a network interface and information about the affected host.

The July update is available through the Windows Update service.