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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.

Apple Releases Security Updates to Address Multiple Vulnerabilities

Apple has released Mac OS X 10.6.8 and Security Update 2011-004 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code, disclose sensitive information, or cause a denial-of-service condition.

US-CERT encourages users and administrators to review Apple Support Article HT4723 and apply any necessary updates to help mitigate the risks.

Mozilla Releases Firefox 5 and 3.6.18

The Mozilla Foundation has released Firefox 5 and Firefox 3.6.18 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code, violate the same origin policy, or perform a cross-site scripting attack.

US-CERT encourages users and administrators to review the Mozilla Foundation Security Advisories for Firefox 5 and Firefox 3.6.18 and apply any necessary updates to help mitigate the risks.

RIM Releases Security Advisory for BlackBerry PlayBook

RIM has released a security advisory to address vulnerabilities in the Adobe Flash Player version included with the BlackBerry PlayBook tablet software. These vulnerabilities may allow an attacker to execute arbitrary code or cause a denial of service condition.

US-CERT encourages users and administrators to review BlackBerry security advisory KB27365 and apply any necessary updates to help mitigate the risks.

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