Cisco IOS: Critical Advisory for Authentication Bypass Issue

A major vulnerability affects IOS software, enabling a hacker to bypass the authentication function. Cisco has issued an advisory document that tells IT managers how to eliminate several security flaws in its IOS software. The most serious vulnerability affects all versions . . . A major vulnerability affects IOS software, enabling a hacker to bypass the authentication function. Cisco has issued an advisory document that tells IT managers how to eliminate several security flaws in its IOS software. The most serious vulnerability affects all versions of IOS from release 11.3 forward, effectively encompassing all its mainstream routers and switches.

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