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Cisco has released Security Advisories cisco-sa-20070412-wcs and cisco-sa-20070412-wlc to address multiple vulnerabilities in Cisco Wireless Control System, Wireless LAN Controller, and Lightweight Access Points. The impacts of these vulnerabilities include denial of service, information disclosure, access control list changes, privilege escalation, unauthorized access through fixed authentication credentials, and the ability to gain full administrative access.

More information about these vulnerabilities is located in the following:

• Cisco Security Advisory cisco-sa-20070412-wcs - Multiple Vulnerabilities in Cisco Wireless Control System
• Cisco Security Advisory cisco-sa-20070412-wlc - Multiple Vulnerabilities in the Cisco Wireless LAN Controller and Cisco Lightweight Access Points

US-CERT encourages administrators to apply the fixes and workarounds as described in Cisco Security Advisories cisco-sa-20070412-wcs and cisco-sa-20070412-wlc