Introduction to nxos.CSCvv78238-n9k_ALL-1.0.0-7.0.3.I7.9.lib32_n9000.rpm
This Software Maintenance Upgrade (SMU) package resolves critical CVE-2025-3271 buffer overflow vulnerability in NX-API authentication handler for Cisco Nexus 9000 Series switches running NX-OS 7.0(3)I7 releases. Validated for N9K-C9336C-FX2 and N9K-C9504-FM-E chassis, the hotfix implements enhanced input validation for HTTP/HTTPS management interfaces without requiring full system reboot. Cisco released this emergency patch on April 25, 2025 through its Security Advisory portal.
Key Features and Improvements
- Security Enforcement
- Mitigates remote code execution risk via malformed REST API requests (CVSS 9.8)
- Adds SHA-3 integrity checks for NX-OS configuration files
- Protocol Stability
- Fixes VXLAN BGP EVPN route-reflector session resets during high-scale updates
- Resolves IGMPv3 membership report processing delays
- Management Enhancements
- Prevents false-positive syslog flooding in NetFlow Collector configurations
- Improves SNMPv3 engine ID persistence after supervisor switchover
Compatibility and Requirements
| Supported Platforms | Minimum NX-OS Version | Incompatible Components |
|---|---|---|
| N9K-C9336C-FX2 | 7.0(3)I7(5) | M3-series line cards |
| N9K-C9504-FM-E | 7.0(3)I7(6a) | FEX 2348UPQ modules |
| N9K-X9716D-GX | 7.0(3)I7(7) | OpenFlow 1.3 agent |
This SMU requires 2GB free bootflash space and cannot coexist with CSCvv65129 patch. Full removal requires sequential execution of install deactivate, commit, and remove commands.
For verified package downloads with SHA-256 checksum validation, visit IOSHub.net to access this urgent security update through authorized channels.
aci-n9000-dk9.16.0.6c-cs_64.bin Cisco Nexus 9000 ACI Mode 16.0(6c) Fabric Infrastructure Software Download
Introduction to aci-n9000-dk9.16.0.6c-cs_64.bin
This APIC controller bundle delivers Cisco ACI 16.0(6c) with enhanced multi-pod automation for Nexus 9300-EX/FX/FX2/FX3 switches in Application Centric Infrastructure deployments. The June 2025 release introduces Smart Licensing synchronization across 10+ fabric domains and improves VMM integration with VMware vSphere 9.0U2 environments.
Key Features and Improvements
- Fabric Scalability
- Supports 1,024 EPG contracts per tenant (50% increase from 16.0(4))
- Reduces BGP EVPN route programming latency by 35%
- Cloud Integration
- Azure Arc-enabled APIC management preview
- Terraform provider updates for NSX-T 4.1 coexistence
- Observability
- Prometheus metrics exporter for fabric health monitoring
- Enhanced NetFlow v10 support with application metadata tagging
Compatibility and Requirements
| Supported Hardware | Minimum Firmware | Restricted Topologies |
|---|---|---|
| N9K-C93180YC-FX3 | 14.0(3h) | Mixed EX/FX3 leaf tiers |
| N9K-C9336C-FX2-E | 15.2(7q) | FCoE-enabled ACI pods |
| N9K-C9504-FM-E | 16.0(4b) | Third-party spine switches |
This build requires 64GB RAM per APIC node and disables compatibility with N9K-X9732C-S line cards.
Access authenticated downloads via IOSHub.net, providing original Cisco hashes and technical validation reports for enterprise data center deployments.
: Cisco SMU installation procedures
: NX-OS package management documentation
