# Cisco Addresses NX-OS Switch Vulnerabilities

Cisco disclosed five critical vulnerabilities affecting NX-OS on Nexus 3000 and 9000 Series switches: one involving NX-API, three involving NGOAM, and one involving MPLS OAM. The recommended response is to apply the relevant NX-OS updates. The signal identifies no agency-specific impact, contract action, or procurement opportunity, but the affected network equipment may be used in government environments.

- Government IT and security teams should identify whether their networks use the affected Nexus switch series and apply the relevant NX-OS updates as recommended.
- Contractors supporting network operations should account for the affected NX-OS vulnerabilities in services for customers using these switches; the signal does not specify a deadline or required procurement action.

**Jurisdictions:** federal
**Industries:** Information Technology
**Topics:** Cybersecurity, Digital Infrastructure
**Published:** October 16, 2026

### Vendors
- Cisco ()

### Key Quotes
> Action: apply the NX-OS updates.
> — Original poster

### Sources
- [⚠️ Threat notice Cisco NX-OS Nexus 3000 and 9000 Switches](https://www.reddit.com/r/cybersecurity/comments/1x7nl2d/threat_notice_cisco_nxos_nexus_3000_and_9000) - reddit-cybersecurity