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The US-CERT Current Activity web page is a regularly updated summary of the most frequent, high-impact types of security incidents currently being reported to the US-CERT.

Microsoft Releases Critical Security Bulletin

Microsoft has released Security Bulletin MS15-011 to address a critical vulnerability in Windows. Exploitation of this vulnerability could allow a remote attacker to take complete control of an affected system. 

This security update contains a new policy feature (UNC Hardened Access) which is not enabled by default. To enable this feature, a system administrator must deploy the update, then apply the Group Policy settings described in the bulletin. For complete protection against this vulnerability, system reboots are required. Other than the update and configuration instructions contained in the Security Bulletin, there are no known workarounds or mitigations for this vulnerability. Updates are not available for Windows XP, Windows Server 2003, or Windows 2000.           

US-CERT strongly recommends administrators prioritize the application of the patch, and concurrently review and test the necessary configuration changes discussed in the associated Knowledge Base article (KB3000483).

Google Releases Security Updates for Chrome

Google has released Chrome 40.0.2214.111 for Windows, Mac, and Linux to address multiple vulnerabilities. Exploitation of these vulnerabilities could allow a remote attacker to take control of an affected system.

US-CERT encourages users and administrators to review the Google Chrome blog entry and apply the necessary updates.

Adobe Releases Security Updates for Flash Player

Adobe has released security updates to address multiple vulnerabilities in Flash Player, one of which could allow a remote attacker to take control of an affected system.

Users and administrators are encouraged to review Adobe Security Bulletin APSB15-04 and apply the necessary updates.

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