Cisco Systems released a critical security bulletin for a vulnerability that allows remote unauthenticated users to gain complete control of its email security appliances. The vulnerability is tied to Cisco’s IronPort AsyncOS operating system.
Cisco first issued a security bulletin last week for the IronPort AsyncOS, but on Wednesday updated that alert with more information including a software update that addresses the security flaw. Cisco also indicated a workaround exists that can halt remote access to affected email appliances.
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