Cisco Unified CM Remote Code Execution Vulnerability (CVE-2026-20045)

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Cisco Unified CM Remote Code Execution Vulnerability (CVE-2026-20045)

Securityboulevard • January 28, 2026

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Cisco Unity Connection; Cisco Webex Calling Dedicated Instance. Technical details for CVE-2026-20045. The vulnerability arises from improper ...

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Cisco Unified CM Remote Code Execution Vulnerability (CVE-2026-20045) A remote code execution vulnerability, identified as CVE-2026-20045, affects Cisco Unity Connection and Cisco Webex Calling Dedicated Instance. The issue arises from improper handling of input, allowing attackers to execute arbitrary code. Organizations using these Cisco products are advised to assess their systems for potential exploitation. 1 sources 80

Extracted Entities

CVEs (1)

Platforms (3)

Cisco Unified CM Cisco Unity Connection Cisco Webex Calling Dedicated Instance