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Tracker / CVE-2026-20045

CVE-2026-20045

Exploited High 8.2

A vulnerability in 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 could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device.  This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending a sequence of crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root.  Note: Cisco has assigned this security advisory a Security Impact Rating (SIR) of Critical rather than High as the score indicates. The reason is that exploitation of this vulnerability could result in an attacker elevating privileges to root.

Affected products and versions

cisco unified_communications_manager · 12.5 → 14su5
cisco unified_communications_manager · 15.0 → 15su3a
cisco unified_communications_manager_im_and_presence_service · 12.5 → 14su5
cisco unified_communications_manager_im_and_presence_service · 15.0 → 15su3a
cisco unity_connection · 12.5 → 14su5
cisco unity_connection · 15.0 → 15su3

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References