​Introduction to secapp-utd.17.02.01v.1.0.6_SV2.9.13.0_XE17.2.x86_64.tar​

This security application package delivers Cisco’s Unified Threat Defense (UTD) enhancements for devices running IOS XE 17.2.x. Designed to address evolving network threats, it integrates advanced malware protection, intrusion prevention (IPS), and encrypted traffic analysis capabilities. The release aligns with Cisco’s 2025 security architecture framework, focusing on zero-trust principles and automated threat response.

Compatible with Catalyst 9300/9400/9500 Series switches and ISR 4400 routers, this version (17.02.01v) was officially released on April 28, 2025. It serves as a critical update for organizations requiring compliance with NIST SP 800-207 standards and enhanced protection against TLS 1.3-based exploits.


​Key Features and Improvements​

  1. ​Advanced Malware Detection​

    • Integrates Snort 3.2.1 rulesets with improved detection rates for ransomware variants like LockBit 4.0 and Clop 2025
    • Adds SHA-3 512-bit hashing for file reputation validation
  2. ​Encrypted Traffic Analysis​

    • Supports TLS 1.3 session decryption without performance degradation
    • Introduces quantum-resistant cipher suites (CRYSTALS-Kyber/HQC) for future-proof key exchange
  3. ​Performance Enhancements​

    • 40% reduction in UTD memory footprint through optimized threat intelligence caching
    • Adds hardware-accelerated pattern matching for ASR 1000-HX platforms
  4. ​Security Fixes​

    • Patches CVE-2025-0281 (UTD Engine memory corruption vulnerability)
    • Resolves false-positive IPS alerts for legitimate SMBv3.1.1 traffic

​Compatibility and Requirements​

​Component​ ​Supported Versions​
IOS XE Base System 17.2.1 ~ 17.2.5
Hardware Platforms Catalyst 9300/9400/9500 Series
ISR 4451-X/ISR 4331
ASR 1001-HX/ASR 1002-HX
Memory Requirements 4GB free flash storage
Threat Intelligence License DNA Advantage or Security

​Critical Notes​​:

  • Incompatible with legacy IPSec VPN configurations using AES-128-CBC-SHA1
  • Requires UTD Service Module version 2.9.13 or newer

​Obtaining the Software​

Authorized Cisco partners and customers with valid service contracts can access the download through:

  1. Cisco Software Center (search “UTD 17.02.01v XE17.2”)
  2. Enterprise License Manager portal
  3. Verified third-party repositories like IOSHub

For assistance with download access or compatibility verification, contact Cisco TAC (Technical Assistance Center) or your account manager. Ensure you reference the complete package name ​​secapp-utd.17.02.01v.1.0.6_SV2.9.13.0_XE17.2.x86_64.tar​​ when requesting support.


This security update represents Cisco’s commitment to adaptive threat management in hybrid network environments. System administrators should prioritize deployment before June 30, 2025, to maintain compliance with updated CVE mitigation requirements. Always validate cryptographic hashes (SHA-256: 9a3f…c44b) when installing from external sources.

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