Clone Systems

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Clone Systems has been securing businesses since 1998 and delivering PCI compliance as an ASV for 18 years.

06/04/2026

CVE Alert — Cisco Unified CM

CVE-2026-20230 (CVSS 8.6) is a critical vulnerability in Cisco Unified Communications Manager that allows an unauthenticated attacker to write arbitrary files to the underlying operating system.

Public proof-of-concept exploit code is now available, increasing the risk of exploitation.

Affected organizations should apply Cisco’s patches immediately or disable the WebDialer service if it is not required.

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