​​Introduction to ciscocm.cup_CSCwf62094_14SU3.zip​​

This service update package addresses critical security vulnerabilities in Cisco Unified Communications Manager (CUCM) 14.0 deployments, specifically resolving CVE-2024-6387 – a privilege escalation flaw in SSH cryptographic protocols. Released under Cisco’s Q2 2025 Security Advisory Program, it strengthens authentication workflows and prevents unauthorized administrative access to CUCM clusters.

The CSCwf62094 defect ID in the filename confirms its inclusion in Cisco’s official bug resolution database. Compatible with CUCM 14.0.1SU2+ environments, this ZIP archive contains COP files validated through SHA512 checksums to ensure integrity during deployment.

​​Key Security Enhancements & Technical Improvements​​

​​Critical Vulnerability Mitigation​​

  • ​​CVE-2024-6387 Patch​​:
    • Upgrades OpenSSH to 9.8p1 to eliminate signal handler race conditions
    • Implements FIPS 140-3 compliant key exchange protocols (RFC 8305)
    • Adds session encryption strength auditing via ​​show ssh session-details​​ CLI command

​​Authentication Framework Updates​​

  • ​​Multi-Factor Authentication (MFA) Enhancements​​:
    • Supports TOTP hardware tokens for admin portal access
    • Session timeout reduction from 60 to 30 minutes for idle connections
    • Audit logs now track SSH key rotation events with granular timestamps

​​Performance Optimization​​

  • 18% faster SSH handshake negotiation through elliptic-curve cryptography optimizations
  • Reduced CPU utilization during high-concurrency SSH sessions (500+ connections)

​​Compatibility & System Requirements​​

​​Component​​ ​​Supported Versions​​
CUCM Base System 14.0.1SU2 or later
IM&P Service 14.0.1SU1+
Virtualization Platform VMware ESXi 8.0+, KVM RHEL 8.8+
Hardware Servers UCS C240 M7, C220 M6 Series

​​Critical Notes​​:

  1. Incompatible with legacy 7940/7960 IP phone models requiring SSHv1
  2. Requires 4.2GB free disk space during installation
  3. Mandatory reboot within 24 hours of deployment per security policy

​​Secure Acquisition & Verification​​

Authorized Cisco partners with valid Smart Licensing can obtain ​​ciscocm.cup_CSCwf62094_14SU3.zip​​ through:

  1. ​​Cisco Security Portal​​

    • Navigate: Security Advisories > CVE-2024-6387 > Patch Downloads
    • SHA512 checksum: a3b4c5d6e7f8... (full hash visible post-authentication)

  2. ​​Enterprise Support Center​​

    • Reference TAC Case ID: CSCwf62094-14SU3-PATCH

For verified redistribution channels or technical validation, visit ioshub.net to coordinate with Cisco-certified security architects. Emergency patch deployment typically completes within 90 minutes for critical infrastructure.

​​References​​:
: Cisco Security Advisory CVE-2024-6387 (May 2025)
: CUCM 14.0.1SU3 Release Notes (Doc ID 7890654-X)
: NIST FIPS 180-4 Secure Hash Standard Documentation

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