CVE-2024-20253 (CVSS 9.9): Cisco Unified Communications Products RCE Vulnerability Vulnerability CVE-2024-20253 (CVSS 9.9): Cisco Unified Communications Products RCE Vulnerability Do Son January 24, 2024 0 This security flaw tracked as CVE-2024-20253 (CVSS score of 9.9) affects the Cisco products in the default configuration