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Cisco Unified Communications Vulnerabilities & Security Advisories

7 advisories tracked · Cisco Security Advisories · 1 listed in the CISA Known Exploited Vulnerabilities catalog

Every row below is a published Cisco advisory that VulniPulse classified as Unified Communications, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 1 critical, 1 high, 5 medium.

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Cisco Security Advisories

Polled via the official Cisco PSIRT RSS feed. Advisory pages are fetched for new items to extract fixed software and workarounds.

Visit Cisco advisories Cisco RSS feed Unified Communications end-of-life dates(4 dated releases)

Latest Cisco Unified Communications advisories

All severitiescritical (1)high (1)medium (5)low (0)
High8.2Vendor: CriticalCisco Exploited CISA KEV

High [CVE-2026-20045] Cisco Unified Communications Products Remote Code Execution Vulnerability

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 craf… Affected products named by the advisory: Cisco Unified Communications Manager IM and Presence Service.

CVE-2026-20045
Webex
Jan 21, 2026

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