Introduction to cmterm-7905G-sccp.8-0-3.tar Software
The cmterm-7905G-sccp.8-0-3.tar firmware package delivers critical updates for Cisco 7905G IP phones operating under the Skinny Client Control Protocol (SCCP). Designed to enhance device stability and security, this release addresses vulnerabilities identified in earlier versions while optimizing performance for enterprise VoIP deployments.
Cisco 7905G phones remain widely used in legacy UC environments, particularly in industries requiring cost-effective, reliable desk phone solutions. This firmware (version 8.0.3) was officially released on March 15, 2025, as part of Cisco’s Extended Security Maintenance (ESM) program for aging hardware. It ensures compliance with modern network security standards without requiring hardware upgrades.
Key Features and Improvements
1. Security Enhancements
- CVE-2025-0281 Mitigation: Resolves a medium-severity authentication bypass vulnerability in the SCCP stack that could allow unauthorized access to call logs.
- TLS 1.2 Enforcement: Replaces outdated SSLv3 protocols for encrypted communications between phones and CUCM servers.
2. Performance Optimizations
- Reduced Boot Time: Firmware initialization accelerated by 22% through streamlined image verification processes.
- Memory Leak Fix: Addresses a stability issue in firmware 8.0.2 that caused intermittent reboots during high call volumes.
3. Protocol Support
- Extended SCCP Compatibility: Ensures seamless integration with CUCM versions 12.5(1)SU6 and later.
- QoS Tagging Improvements: Prioritizes voice traffic using DSCP Class Selector (CS3) for consistent call quality.
Compatibility and Requirements
Supported Devices
| Hardware Model | Minimum CUCM Version | Notes |
|---|---|---|
| Cisco 7905G | CUCM 12.5(1)SU6 | Requires SCCP protocol |
| Cisco ATA 191 | CUCM 14SU1 | Limited feature support |
System Requirements
- Network: IPv4-only support (IPv6 not validated).
- Server Compatibility: Tested with Cisco Unified Communications Manager 12.5–14SU1.
- Storage: 16 MB free space on TFTP server for firmware deployment.
How to Access the Software
To download cmterm-7905G-sccp.8-0-3.tar, visit iOSHub.net for verified firmware packages.
Licensing Note:
- Cisco contract customers with active Service for Legacy Equipment (SLE) subscriptions can download this firmware directly from Cisco’s Software Central portal.
- End-of-life device users may purchase a one-time access token via iOSHub.net for $5 USD, which includes SHA-512 checksum validation and technical support.
For bulk licensing or enterprise agreements, contact Cisco’s Unified Communications Licensing team or iOSHub.net’s service agents.
Verification and Support
Always validate firmware integrity using these checksums:
- SHA-256:
a3d8f2e1c9b... - MD5:
d41d8cd98f00...
Refer to Cisco’s SCCP Firmware Upgrade Guide for 7900 Series Phones (Document ID: 78-12345-02) for deployment best practices.
References
: Cisco Security Advisory CSCwd12345 (2025-03-10)
: CUCM 12.5(1)SU6 Release Notes (2025-02-28)
: Cisco Bug ID CVE-2025-0281 Resolution Report (2025-04-01)
