Introduction to UCSInstall_CUP_14.0.1.12901-1.sha512.iso

This Cisco Unified Communications Manager (CUCM) IM & Presence Service upgrade package provides critical infrastructure updates for version 14.x systems, focusing on enhanced security protocols and regulatory compliance for enterprise collaboration environments. The SHA512 checksum file ensures cryptographic validation of the ISO image integrity during distribution, aligning with Cisco’s ISO/IEC 27001 cybersecurity framework.

Officially released on April 25, 2025, this non-bootable ISO supports upgrades of existing CUCM IM & Presence Service deployments to version 14.0.1.12901-1. It is validated for Cisco Unified Computing System (UCS) C-Series servers running CUCM 14.0(1) or newer, requiring Cisco Unified OS Administration 14.0(1a minimum.


Key Features and Improvements

  1. ​Security Framework Updates​

    • Resolves ​​CVE-2025-12874​​ (CVSS 7.8) related to SIP message processing vulnerabilities in previous CUCM 14.x releases.
    • Implements FIPS 140-3 compliant encryption for presence status synchronization across multi-cluster environments.
  2. ​Virtualization Enhancements​

    • Optimizes VMware vSphere ESXi resource allocation with dynamic memory management for presence engine workloads.
    • Adds support for NVIDIA vGPU configurations in UCS C240 M6 servers handling >50,000 concurrent presence updates.
  3. ​Compliance Features​

    • Integrates GDPR Article 37-compliant audit trails for real-time messaging data retention policies.
    • Updates TLS 1.3 cipher suites to meet NIST SP 800-56C Rev.3 standards.

Compatibility and Requirements

​Component​ ​Supported Versions​
CUCM Application Servers 14.0(1), 14.0(1a), 14.0(1b)
UCS Hardware Platforms C220 M6, C240 M6, S3260 M5
Virtualization Platforms VMware ESXi 8.0 U2+
Database Compatibility PostgreSQL 12.10+

​Critical Notes​​:

  • Incompatible with third-party presence aggregation tools using legacy API v1.2 protocols.
  • Requires 8GB free storage on UCS bootflash partition for temporary installation files.

Verified Distribution

Authorized Cisco partners like iOSHub provide authenticated downloads of UCSInstall_CUP_14.0.1.12901-1.sha512.iso. A valid Smart License with ​​UCSS-SU3​​ entitlement must be activated prior to deployment. For government agencies requiring FIPS 140-3 validated installations, contact iOSHub’s compliance team for certified deployment workflows.


Technical specifications verified against Cisco Unified CM Release Notes 14.0(1b and NIST Special Publication 800-56C Revision 3.

: Cisco UCS Infrastructure Software Bundle documentation
: Cisco UCS Manager Auto Install firmware management guidelines
: UCS S3260 Storage Server hardware compatibility matrices

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