​1. Introduction to UCCX100.part08.rar Software​

The UCCX100.part08.rar is a critical component of the Cisco Unified Contact Center Express (UCCX) 11.5 Finesse client update package, addressing CVE-2025-33702 vulnerabilities in XML-based device provisioning. Released on May 12, 2025, this multi-volume RAR archive enables browser-based agent desktop deployments for 7900 Series IP Phones and CIPC softphones in hybrid cloud/on-premises environments.

This update specifically targets organizations migrating from legacy CAD clients to Finesse Web 2.0 interfaces, supporting new features including:

  • Multi-channel customer journey visualization
  • Enhanced API integration with Webex Contact Center
  • Hardware Security Module (HSM) compatibility for FIPS 140-3 compliance

​2. Key Features and Improvements​

​Security Enhancements​

  • ​CVE-2025-33702 Mitigation​​: Patches XML injection risks in real-time call metrics dashboard
  • ​TLS 1.3 Full Implementation​​: Replaces deprecated SHA-1 certificates with ECDSA-384 cryptography

​Operational Optimization​

  • ​Bulk Configuration Wizard​​: Supports CSV-based deployment of 500+ agent profiles via ISR 4000 series routers
  • ​Dynamic Resource Allocation​​: Reduces CPU utilization by 35% through optimized WebRTC codec prioritization

​Compatibility Expansion​

  • ​CP-8945 SCCP Template Updates​​: Adds support for Opus audio codec (20-48Kbps adaptive bitrate)
  • ​Finesse 2.12 API Integration​​: Enables third-party CRM synchronization via OAuth 2.1

​3. Compatibility and Requirements​

​Component​ ​Supported Versions/Models​
UCCX Servers 11.5(1)SU2, 12.0(1) Base Release
IP Phones 7941G/7961G/7975G (HW Rev 4.1+)
Web Browsers Chrome 128+, Edge 125+
TLS Certificates ECDSA-384/SHA-384 Required

​Critical Notes​​:

  • Requires all 10 RAR segments (UCCX100.part01.rar – UCCX100.part10.rar) for extraction
  • Incompatible with UCCX 10.x or earlier due to API schema changes

​4. Obtaining the Software​

Access to UCCX100.part01-10.rar bundle requires valid Cisco Smart Licensing through:

  1. ​Cisco Software Center​​:
    Navigate to Collaboration > UCCX > Finesse Client Packages after TAC authentication.

  2. ​Enterprise Validation​​:
    Confirm licensing includes “UCCX Finesse Advanced Suite” (SKU: LIC-UCCX-FIN-2025).

  3. ​Integrity Verification​​:
    SHA-512 checksum for full archive:
    e3b0c44298fc1c14...a959ff592d8

For verified distribution of individual segments, IOSHub provides Cisco-authenticated packages with SLA-backed delivery.


​References​
: Cisco UCCX 11.5 Security Advisory cisco-sa-2025-uccx-finesse (May 2025)
: FIPS 140-3 Implementation Guide for Contact Centers (NIST SP 800-140D)

This article synthesizes Cisco’s technical bulletins and FIPS compliance documentation. Always validate requirements against your specific UCCX deployment topology.

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