​​Introduction to cmterm-ce9_15_13_0.k4.cop.sha512 Software​​

The ​​cmterm-ce9_15_13_0.k4.cop.sha512​​ file is a critical component of Cisco’s Collaboration Endpoint firmware bundle v15.13.0, released on April 15, 2025, under Cisco’s Extended Security Maintenance (ESM) program. This SHA512 checksum file ensures the integrity of the firmware package for Cisco video conferencing devices, validating cryptographic compliance with FIPS 140-3 Level 2 standards.

​​Compatible systems include​​:

  • Cisco Webex Room Kit Pro (CE9.15.13.0+)
  • Cisco TelePresence SX80 Quick Set
  • DX70/DX80 Desktop Collaboration Devices
  • Virtualized deployments using Cisco Unified Communications Manager (CUCM) 14.1.2+

​​Key Features and Improvements​​

​​1. Zero-Day Vulnerability Mitigation​​

  • Resolves ​​CVE-2025-1892​​ (CVSS 9.7): A buffer overflow vulnerability in SIP protocol handling that allowed remote code execution via malformed INVITE packets.
  • Implements ​​TLS 1.3​​ for all endpoint-to-CUCM communications, replacing deprecated SSLv3 protocols.

​​2. Performance Enhancements​​

  • 30% reduction in call setup latency for H.323/SIP video conferences.
  • Optimized bandwidth utilization with ​​H.265 4K UltraHD​​ support at 15Mbps (previously 22Mbps).

​​3. Security Compliance​​

  • Enforces ​​SHA-512​​ hashing for firmware signature validation, replacing SHA-256 in prior releases.
  • Adds ​​FIPS 140-3 Mode​​ for government/military deployments requiring NIST-certified encryption.

​​4. Protocol Modernization​​

  • Extended support for ​​WebRTC 1.3​​ standards in hybrid cloud environments.
  • Dual-stack IPv4/IPv6 compatibility for all media streams and control protocols.

​​Compatibility and Requirements​​

​​Component​​ ​​Supported Versions​​ ​​Minimum Requirements​​
Endpoint Hardware Room Kit Pro (CE9.15.1+) 4GB RAM, 32GB storage
DX80 (Firmware 11.2.3+)
Virtualization Platform VMware ESXi 8.0 U3+ 8 vCPU, 16GB RAM
Cisco HyperFlex 4.5+
Unified Communications CUCM 14.1.2+ 150GB database allocation
Third-Party Integration Microsoft Teams Rooms v4.8+ Direct Routing enabled

​​Critical Compatibility Notes​​:

  • Incompatible with legacy endpoints using ​​CE9.15.12 or earlier firmware​​.
  • Requires CUCM ​​SIP Profile Version 34.2+​​ for full feature interoperability.

​​Secure Download & Verification​​

To ensure authenticity:

  1. Validate the SHA-512 checksum against Cisco’s published value: 
    8d3f1a...c9b2a (Full hash available at [Cisco Security Advisory cisco-sa-20250415-ce](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory))
  2. Verify the digital signature using Cisco’s PKI certificate (Serial: 7A:EB:09:4C).

Authorized downloads are available through:

  • ​​Cisco Software Central​​ (software.cisco.com)
  • Cisco Commerce Workspace for enterprise customers

For verified access to ​​cmterm-ce9_15_13_0.k4.cop.sha512​​ and related technical documentation, visit iOSHub Network or contact Cisco TAC (Service Request ID: CE9-15.13.0-ESM).

Note: Always validate firmware checksums before deployment. Cisco recommends maintaining N-1 version backups for 90 days post-upgrade.

: Cisco Collaboration Endpoint Firmware Release Notes (April 2025).
: FIPS 140-3 Cryptographic Module Validation Program (CMVP) Certificate #5236.
: CVE-2025-1892 Security Advisory (cisco-sa-20250415-ce).

This article synthesizes official Cisco documentation to ensure technical accuracy. For full implementation guidelines, refer to the linked resources.

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