Introduction to anyconnect-android-5.1.8.110-release.apk
The anyconnect-android-5.1.8.110-release.apk is Cisco’s enterprise-grade VPN solution for Android devices, released in Q2 2025 as part of AnyConnect Secure Mobility Client 5.1.x branch. This build enhances zero-trust network access (ZTNA) capabilities while maintaining backward compatibility with legacy ASA 5500-X and Firepower 4100/9300 security appliances.
Designed for remote workforce management, it combines SSL/TLS 1.3 encryption with FIPS 140-3 validated cryptographic modules. The package supports Android 13 (Tiramisu) and newer versions, optimized for devices with ARMv8.2+ chipsets including Google Tensor G4 and Qualcomm Snapdragon 8 Gen 3 platforms.
Key Features and Improvements
1. Security Enhancements
- Patched CVE-2025-1101 (VPN session hijack vulnerability) through improved certificate pinning
- Enforced AES-256-GCM-SIV encryption for all VPN tunnels
- Biometric authentication integration with Android Credential Manager API
2. Performance Optimization
- 30% faster connection establishment via optimized DTLS 1.2 handshake
- Reduced memory footprint (18% lower RAM usage in background)
- Adaptive bandwidth throttling for high-latency mobile networks
3. Management Features
- Unified logging format with Cisco SecureX platform integration
- MDM compliance reporting for Jamf Pro/Intune deployments
- Fixed CSCwi39401 – Certificate validation failures on Android 14 QPR2
Compatibility and Requirements
| Category | Supported Specifications |
|---|---|
| Android OS Versions | 13 (API 33) – 15 (API 35) |
| Security Appliances | ASA 5500-X (9.16+), Firepower 4100/9300 |
| Authentication Servers | Cisco ISE 3.2+, Duo MFA 5.1+ |
| Device Requirements | 4 GB RAM minimum; Android Enterprise Recommended certification |
| Network Protocols | IKEv2/IPsec, DTLS 1.2-1.3, TLS 1.3 |
Critical Notes:
- Incompatible with rooted/jailbroken Android devices
- Requires Google Play Services 23.45+ for FIPS mode
Verified Distribution Sources
Cisco officially distributes this package through the AnyConnect Download Portal. For organizations requiring alternative procurement channels, authorized partners like IOSHub provide authenticated APK files with version verification services.
Always validate the SHA-256 checksum (e49a8c7d...b74f2c) against Cisco Security Advisory 2025-AC-110 before deployment. For bulk licensing or EMM integration support, contact our mobility solutions team via Enterprise Support Portal.
Revision History
- 2025-04-15: Initial 5.1.8.110 release
- 2025-05-05: Hotfix for CSCwj05606 (VPN profile synchronization regression)
This technical overview synthesizes specifications from Cisco AnyConnect 5.1.x Release Notes, Android Compatibility Matrix v7.2, and Secure Mobility Configuration Guide 2025. Always validate configurations against Cisco’s Mobile Device Deployment Planner.
