CVE-2026-76471: Cisco NX-OS Software NX-API Remote Code Execution Vulnerability
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API of an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes, which could result in a reload of the device and a DoS condition.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An unauthenticated remote attacker can exploit it by sending a crafted HTTP request to the NX-API on an affected device. No privileges or user interaction are required.
What is the potential impact of a successful exploit?
A successful exploit can allow arbitrary code execution with root privileges. It can also crash processes and reload the device, causing a denial-of-service condition.
What component should be prioritized for exposure review?
Prioritize affected Cisco NX-OS devices with the NX-API feature reachable over HTTP. The vulnerable input is data sent to NX-API in crafted HTTP requests.