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21 Jan 2026

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highpatchedexploited 21 Jan 2026 Cisco Unified Communications Products Code Injection Vulnerability Cisco Unified Communications Manager Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unity Connection, and Cisco Webex Calling Dedicated Instance contain a code injection vulnerability that could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. Added to CISA KEV on 2026-01-21 (federal deadline 2026-02-11). CVE-2026-200452 sources