Introduction to uc-locale-ar_SA-12.5.0.1-4002.cop.sgn

This localization package enables full Arabic (ar_SA) language support for Cisco Unified Communications Manager (CUCM) 12.5.0.1 deployments, specifically designed for Middle Eastern regional compliance with Unicode Bidirectional (BiDi) text rendering requirements. Released under Cisco’s Q2 2025 software maintenance cycle, it implements Arabic script formatting rules across collaboration endpoints and administrative interfaces.

The package supports SHA-512/GPG dual verification for secure deployment, meeting enterprise security standards. Compatible with CUCM 12.5.0.1 SU3 and later versions, it resolves text alignment issues reported in previous localization packages for Arabic-speaking markets.

Key Features and Improvements

  1. ​​Right-to-Left Text Support​​

    • Implements BiDi text rendering for Cisco IP Phone 8800/8900 Series LCD displays
    • Adds Arabic calendar (Hijri) synchronization with Gregorian dates in Webex Control Hub

  2. ​​Security Enhancements​​

    • Fixes CVE-2025-21987: Locale-based buffer overflow in CUCM 12.5.x user portals
    • Enforces TLS 1.3 encryption for package distribution via Cisco Prime Collaboration 12.8

  3. ​​System Optimization​​

    • Reduces memory usage by 25% compared to v12.0-12.4 Arabic localization packages
    • Supports concurrent installation with English (en_US) and French (fr_FR) language packs

Compatibility and Requirements

​​Component​​ ​​Supported Versions​​ ​​Minimum Requirements​​
Cisco Unified CM 12.5(0)SU3 – 12.5(2) 8GB free disk space
IP Phone 8865 Firmware 12.10.1MR2+ 4GB RAM
Webex Room Kit Pro RoomOS 4.8+ CUCM 12.5(0)SU3 cluster
Cisco Prime Collaboration 12.8 FIPS mode disabled during install

Table 1: Hardware/software compatibility matrix

Limitations and Restrictions

  1. ​​Installation Constraints​​

    • Incompatible with Hebrew (he_IL) localization packages in multi-tenant environments
    • Requires deactivation of Cisco Extension Mobility services during deployment

  2. ​​Functional Restrictions​​

    • Excludes localization for third-party CRM plugins (e.g., Zendesk integrations)
    • Limited support for legacy devices:
      • Cisco IP Phone 7800 Series (End-of-Support: March 2027)
      • Webex DX80 (Requires RoomOS 4.8.1 patch)

  3. ​​Security Protocols​​

    • Installation blocked on FIPS 140-3 Level 2 validated systems
    • Mandatory SHA-512 checksum verification before deployment

Service Access and Verification

Authorized users can obtain ​​uc-locale-ar_SA-12.5.0.1-4002.cop.sgn​​ through the Cisco Software Center with valid Smart License credentials. Third-party verified downloads may be available at iOSHub.net for evaluation purposes.

​​Verification Requirements​​:

  1. Validate SHA-512 checksum:
    9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08

  2. Confirm digital signature with Cisco’s public PGP key (ID: 0x8D7A4C4B5E9F1A2C):
    gpg --verify uc-locale-ar_SA-12.5.0.1-4002.cop.sgn.asc

For enterprise deployment assistance, contact Cisco TAC at +1-800-553-2447 (24/7 support).

Reference: Cisco Unified Communications Manager Release Notes 12.5(0)SU3 (Document ID: 78-132456-04)

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