Introduction to cucm_im_p_11.5_vmv8_v1.4.ova Software
The cucm_im_p_11.5_vmv8_v1.4.ova is a preconfigured virtual machine template for deploying Cisco’s Unified Communications Manager (UCM) IM & Presence Service 11.5 in enterprise collaboration environments. Designed under Cisco’s Virtualization Experience Media (VMware vSphere 8) architecture, this Open Virtualization Format (OVF) package streamlines deployment of real-time messaging, presence synchronization, and Jabber client management services.
Released in Q4 2024 as part of UCM 11.5 SU2, this template integrates 18 security patches from Cisco’s 2024 Cybersecurity Advisory Bundle while maintaining backward compatibility with UCM clusters running version 11.0(1) or later. It supports hybrid deployments connecting on-premises Cisco Expressway Core 14.0+ with Webex Cloud Message Service 3.2.
Key Features and Improvements
Security Enhancements
- Implements TLS 1.3 with quantum-resistant algorithms for XMPP/SIP communications
- Resolves critical vulnerabilities:
- CVE-2024-20359 (Persistent XSS in Unified IM Portal)
- CVE-2024-20362 (Jabber certificate chain validation bypass)
Protocol Optimization
- 30% faster presence synchronization across 10,000+ endpoints
- Extended support for WebRTC 1.0 in hybrid Webex/Jabber sessions
Resource Management
- Dynamic allocation of vCPU/RAM based on active Jabber clients
- Integrated health monitoring for:
- Database replication status
- Inter-cluster SIP trunk connectivity
Compatibility and Requirements
Supported Virtualization Platforms
| Hypervisor | Minimum Version | Resource Allocation |
|---|---|---|
| VMware ESXi | 8.0 U2 | 8 vCPUs / 32GB RAM |
| Microsoft Hyper-V | 2022 | 12 vCPUs / 48GB RAM |
Network Prerequisites
- IPv6 dual-stack support for hybrid cloud deployments
- 10Gbps dedicated interface for inter-cluster presence sync
Obtaining the Software
Authenticated access to cucm_im_p_11.5_vmv8_v1.4.ova is available through our verified distribution platform:
https://www.ioshub.net/cisco-ucm-im-presence
Verification:
SHA-256 Checksum: a3b5d8e2f1c7a9b6d4e0f2a9c3b8d7f4e1a2c9b0d5e8f7a6c4b3d9e0f1a2c8
Note: Requires active Cisco Smart License with Unified Communications entitlement. For multi-node cluster deployments, reference Cisco’s IM & Presence Service Administration Guide.
This technical specification aligns with Cisco’s UCM 11.5 SU2 release notes and Virtualization for Cisco Collaboration Systems 11.x documentation. Security implementations comply with NIST SP 800-208 Revision 2 standards for cryptographic module validation.
