Description: This update resolves two privately reported vulnerabilities in Microsoft Windows Event System that could allow remote code execution. An attacker who successfully exploited these vulnerabilities could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights. The security update addresses the vulnerabilities by changing the way that Event System handles per-user subscriptions. Keep reading →

Description: This security update resolves a publicly reported vulnerability in Windows Explorer that could allow remote code execution when a specially crafted saved-search file is opened and saved. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The security update addresses these vulnerabilities by modifying the way that Windows Explorer parses saved searches. Keep reading →

Description: This security update resolves two privately reported vulnerabilities in the Pragmatic General Multicast (PGM) protocol that could allow a denial of service if malformed PGM packets are received by an affected system. An attacker who successfully exploited this vulnerability could cause a user’s system to become non-responsive and to require a restart to restore functionality. Note that the denial of service vulnerability would not allow an attacker to execute code or to elevate their user rights, but it could cause the affected system to stop accepting requests. The security update addresses these vulnerabilities by modifying the way PGM parses malformed packets. Keep reading →

Description: This security update resolves two privately reported vulnerabilities in Microsoft DirectX that could allow remote code execution if a user opens a specially crafted media file. An attacker who successfully exploited either of these vulnerabilities could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The security update addresses the vulnerability by modifying the way that DirectX handles MJPEG and SAMI format files. Keep reading →

Description: This security update resolves a privately reported vulnerability in the Bluetooth stack in Windows that could allow remote code execution. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by modifying the way that the Bluetooth stack handles a large number of service description requests. Keep reading →

Description: This security update resolves a privately reported vulnerability in the Windows kernel. A local attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts. Keep reading →

Description: This security update resolves a privately reported vulnerability. This spoofing vulnerability exists in Windows DNS clients and could allow an attacker to send specially crafted responses to DNS requests, thereby spoofing or redirecting Internet traffic from legitimate locations. Keep reading →

Microsoft has released security bulletin MS07-053. The security bulletin contains all the relevant information about the security update. This information includes file manifest information and deployment options. To view the complete security bulletin, visit one of the following Microsoft Web sites:

• Home users:
  

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Description: This important security update resolves two privately reported vulnerabilities in addition to other vulnerabilities identified during the course of the investigation. These vulnerabilities could allow an anonymous remote attacker to run code with the privileges of the logged on user. If a user subscribed to a malicious RSS feed in the Feed Headlines Gadget or added a malicious contacts file in the Contacts Gadget or a user clicked on a malicious link in the Weather Gadget an attacker could potentially run code on the system. Keep reading →

Description: This important security update resolves two privately reported vulnerabilities that could allow code execution if a user viewed a specially crafted file in Windows Media Player. Keep reading →