Cisco IOS/XE Vulnerability Allows Unauthorized Access to Confidential Data

 Cisco released an advisory describing a high-severity vulnerability (CVE-2025-20160) in its IOS and IOS XE platforms. The flaw stems from improper validation of the TACACS+ shared secret configuration. When TACACS+ is enabled but no secret is set, remote attackers or machine-in-the-middle adversaries can intercept or manipulate authentication messages. Successful exploitation grants unauthorized access to confidential […]

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