Cisco Advance Notification for Publication of October 7, 2026, Security Advisories
cisco-sa-notice-fBn58ELx
Advisory summary
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.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-napi-rce-r2shwu2j This advisory is part of a group of advisories.
For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of October 7, 2026, Security Advisories. For further documentation of improvements and fixes in Cisco NX-OS Software, see Cisco NX-OS Software Security Hardening Release: October 2026. Security Impact Rating: Critical CVE: CVE-2026-76471
Scope
What the vendor says is affected
The collected bulletin did not provide a separate affected-products list. Check the original bulletin before making an exposure decision.
Next step
What the vendor recommends
Cisco has released software updates that address this vulnerability.
Review the complete instructions on the vendor's siteTimeline
When this advisory changed
- Published by Cisco
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
Vulnerabilities