See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. Fixed ReleasesĪt the time of publication, the following Cisco Unified Communications Manager and Cisco Unified Communications Manager SME releases contained the fix for this vulnerability: If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Go to Cisco Software Download and download the firmware files for your IP phone model (in my case it is. All the Engineering Special releases of Cisco Unified Communications Manager are qualified with Unified CCX if the corresponding Service Update version of the Unified CM is qualified with Unified CCX. The first thing we need to do is download the new firmware files from Cisco website. Unified CCX Software Compatibility Matrix for 11.5(1)SU1. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. I will be upgrading Cisco 8851 IP phone (from version 12-0-1-11 to 12-5-1SR3-74) using Cisco ISR4331/K9 router as a CME. When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, to determine exposure and a complete upgrade solution.
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