CVE-2026-76471

Cisco NX-OS Software NX-API Remote Code Execution Vulnerability

Published Oct 7, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Description

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 Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco NX-OS Software

unknown

Version	Status	Constraints
`9.2(3)`	affected	—
`9.2(2v)`	affected	—
`9.2(1)`	affected	—
`9.2(2t)`	affected	—
`9.2(3y)`	affected	—
`9.3(2)`	affected	—
`9.2(4)`	affected	—
`9.3(1)`	affected	—
`9.3(1z)`	affected	—
`9.2(2)`	affected	—
`9.3(3)`	affected	—
`9.3(4)`	affected	—
`9.3(5)`	affected	—
`9.3(6)`	affected	—
`9.3(5w)`	affected	—
`9.3(7)`	affected	—
`9.3(7k)`	affected	—
`9.3(7a)`	affected	—
`9.3(8)`	affected	—
`9.3(9)`	affected	—
`9.3(10)`	affected	—
`10.3(1)`	affected	—
`10.3(2)`	affected	—
`9.3(11)`	affected	—
`10.3(3)`	affected	—
`9.3(12)`	affected	—
`10.4(1)`	affected	—
`10.3(99w)`	affected	—
`10.3(3w)`	affected	—
`10.3(99x)`	affected	—
`10.3(3o)`	affected	—
`10.3(4)`	affected	—
`10.3(3p)`	affected	—
`10.3(4a)`	affected	—
`10.4(2)`	affected	—
`10.3(3q)`	affected	—
`9.3(13)`	affected	—
`10.3(5)`	affected	—
`10.4(3)`	affected	—
`10.3(3x)`	affected	—
`10.3(4g)`	affected	—
`10.5(1)`	affected	—
`10.3(3r)`	affected	—
`10.3(6)`	affected	—
`9.3(14)`	affected	—
`10.4(4)`	affected	—
`10.3(4h)`	affected	—
`10.5(2)`	affected	—
`10.3(7)`	affected	—
`10.4(5)`	affected	—
`10.5(3)`	affected	—
`9.3(15)`	affected	—
`10.4(4g)`	affected	—
`10.5(4)`	affected	—
`10.6(1)`	affected	—
`10.5(3t)`	affected	—
`10.3(8)`	affected	—
`10.4(6)`	affected	—
`10.5(3s)`	affected	—
`10.5(3e)`	affected	—
`10.5(3o)`	affected	—
`9.3(16)`	affected	—
`10.6(1s)`	affected	—
`10.6(2)`	affected	—
`10.5(3p)`	affected	—
`10.3(9)`	affected	—
`10.6(2s)`	affected	—
`10.6(3)`	affected	—
`10.4(7)`	affected	—
`10.5(5)`	affected	—
`9.3(17)`	affected	—
`10.6(2n)`	affected	—
`10.6(3s)`	affected	—

Cisco

Cisco Unified Computing System (Managed)

unknown

Version	Status	Constraints
`4.0(1a)`	affected	—
`4.1(1d)`	affected	—
`4.0(4f)`	affected	—
`4.0(4a)`	affected	—
`4.0(4e)`	affected	—
`4.0(4c)`	affected	—
`4.0(4h)`	affected	—
`4.1(1c)`	affected	—
`4.0(2a)`	affected	—
`4.1(1e)`	affected	—
`4.1(2a)`	affected	—
`4.0(2b)`	affected	—
`4.0(1b)`	affected	—
`4.0(4d)`	affected	—
`4.0(2e)`	affected	—
`4.1(1a)`	affected	—
`4.0(4g)`	affected	—
`4.0(1c)`	affected	—
`4.0(1d)`	affected	—
`4.0(4b)`	affected	—
`4.0(4i)`	affected	—
`4.0(2d)`	affected	—
`4.1(1b)`	affected	—
`4.1(2b)`	affected	—
`4.0(4k)`	affected	—
`4.1(3a)`	affected	—
`4.1(3b)`	affected	—
`4.1(2c)`	affected	—
`4.0(4l)`	affected	—
`4.1(4a)`	affected	—
`4.1(3c)`	affected	—
`4.1(3d)`	affected	—
`4.2(1c)`	affected	—
`4.2(1d)`	affected	—
`4.0(4m)`	affected	—
`4.1(3e)`	affected	—
`4.2(1f)`	affected	—
`4.1(3f)`	affected	—
`4.2(1i)`	affected	—
`4.1(3h)`	affected	—
`4.2(1k)`	affected	—
`4.2(1l)`	affected	—
`4.0(4n)`	affected	—
`4.2(1m)`	affected	—
`4.1(3i)`	affected	—
`4.2(2a)`	affected	—
`4.2(1n)`	affected	—
`4.1(3j)`	affected	—
`4.2(2c)`	affected	—
`4.2(2d)`	affected	—
`4.2(3b)`	affected	—
`4.1(3k)`	affected	—
`4.0(4o)`	affected	—
`4.2(2e)`	affected	—
`4.2(3d)`	affected	—
`4.2(3e)`	affected	—
`4.2(3g)`	affected	—
`4.1(3l)`	affected	—
`4.3(2b)`	affected	—
`4.2(3h)`	affected	—
`4.2(3i)`	affected	—
`4.3(2c)`	affected	—
`4.1(3m)`	affected	—
`4.3(2e)`	affected	—
`4.3(3a)`	affected	—
`4.2(3j)`	affected	—
`4.3(3c)`	affected	—
`4.3(4a)`	affected	—
`4.2(3k)`	affected	—
`4.3(4b)`	affected	—
`4.3(4c)`	affected	—
`4.2(3l)`	affected	—
`4.3(4d)`	affected	—
`4.3(2f)`	affected	—
`4.2(3m)`	affected	—
`4.3(5a)`	affected	—
`4.3(4e)`	affected	—
`4.1(3n)`	affected	—
`4.3(4f)`	affected	—
`4.2(3n)`	affected	—
`4.3(5c)`	affected	—
`4.2(3o)`	affected	—
`4.3(5d)`	affected	—
`4.3(6a)`	affected	—
`4.3(6b)`	affected	—
`4.3(5e)`	affected	—
`4.3(6c)`	affected	—
`4.2(3p)`	affected	—
`4.3(6d)`	affected	—
`4.3(6e)`	affected	—
`4.3(6f)`	affected	—
`4.2(3r)`	affected	—
`4.3(6g)`	affected	—
`4.3(6h)`	affected	—
`4.2(3s)`	affected	—
`4.3(6i)`	affected	—

No data.

Vendor Product Versions

Cisco

Nx-os Software

Version	Status	Scheme	Platform
`9.2(3)`	affected	generic	—
`9.2(2v)`	affected	generic	—
`9.2(1)`	affected	generic	—
`9.2(2t)`	affected	generic	—
`9.2(3y)`	affected	generic	—
`9.3(2)`	affected	generic	—
`9.2(4)`	affected	generic	—
`9.3(1)`	affected	generic	—
`9.3(1z)`	affected	generic	—
`9.2(2)`	affected	generic	—
`9.3(3)`	affected	generic	—
`9.3(4)`	affected	generic	—
`9.3(5)`	affected	generic	—
`9.3(6)`	affected	generic	—
`9.3(5w)`	affected	generic	—
`9.3(7)`	affected	generic	—
`9.3(7k)`	affected	generic	—
`9.3(7a)`	affected	generic	—
`9.3(8)`	affected	generic	—
`9.3(9)`	affected	generic	—
`9.3(10)`	affected	generic	—
`10.3(1)`	affected	generic	—
`10.3(2)`	affected	generic	—
`9.3(11)`	affected	generic	—
`10.3(3)`	affected	generic	—
`9.3(12)`	affected	generic	—
`10.4(1)`	affected	generic	—
`10.3(99w)`	affected	generic	—
`10.3(3w)`	affected	generic	—
`10.3(99x)`	affected	generic	—
`10.3(3o)`	affected	generic	—
`10.3(4)`	affected	generic	—
`10.3(3p)`	affected	generic	—
`10.3(4a)`	affected	generic	—
`10.4(2)`	affected	generic	—
`10.3(3q)`	affected	generic	—
`9.3(13)`	affected	generic	—
`10.3(5)`	affected	generic	—
`10.4(3)`	affected	generic	—
`10.3(3x)`	affected	generic	—
`10.3(4g)`	affected	generic	—
`10.5(1)`	affected	generic	—
`10.3(3r)`	affected	generic	—
`10.3(6)`	affected	generic	—
`9.3(14)`	affected	generic	—
`10.4(4)`	affected	generic	—
`10.3(4h)`	affected	generic	—
`10.5(2)`	affected	generic	—
`10.3(7)`	affected	generic	—
`10.4(5)`	affected	generic	—
`10.5(3)`	affected	generic	—
`9.3(15)`	affected	generic	—
`10.4(4g)`	affected	generic	—
`10.5(4)`	affected	generic	—
`10.6(1)`	affected	generic	—
`10.5(3t)`	affected	generic	—
`10.3(8)`	affected	generic	—
`10.4(6)`	affected	generic	—
`10.5(3s)`	affected	generic	—
`10.5(3e)`	affected	generic	—
`10.5(3o)`	affected	generic	—
`9.3(16)`	affected	generic	—
`10.6(1s)`	affected	generic	—
`10.6(2)`	affected	generic	—
`10.5(3p)`	affected	generic	—
`10.3(9)`	affected	generic	—
`10.6(2s)`	affected	generic	—
`10.6(3)`	affected	generic	—
`10.4(7)`	affected	generic	—
`10.5(5)`	affected	generic	—
`9.3(17)`	affected	generic	—
`10.6(2n)`	affected	generic	—
`10.6(3s)`	affected	generic	—

Cisco

Unified Computing System Manager

Version	Status	Scheme	Platform
`4.0(1a)`	affected	generic	—
`4.1(1d)`	affected	generic	—
`4.0(4f)`	affected	generic	—
`4.0(4a)`	affected	generic	—
`4.0(4e)`	affected	generic	—
`4.0(4c)`	affected	generic	—
`4.0(4h)`	affected	generic	—
`4.1(1c)`	affected	generic	—
`4.0(2a)`	affected	generic	—
`4.1(1e)`	affected	generic	—
`4.1(2a)`	affected	generic	—
`4.0(2b)`	affected	generic	—
`4.0(1b)`	affected	generic	—
`4.0(4d)`	affected	generic	—
`4.0(2e)`	affected	generic	—
`4.1(1a)`	affected	generic	—
`4.0(4g)`	affected	generic	—
`4.0(1c)`	affected	generic	—
`4.0(1d)`	affected	generic	—
`4.0(4b)`	affected	generic	—
`4.0(4i)`	affected	generic	—
`4.0(2d)`	affected	generic	—
`4.1(1b)`	affected	generic	—
`4.1(2b)`	affected	generic	—
`4.0(4k)`	affected	generic	—
`4.1(3a)`	affected	generic	—
`4.1(3b)`	affected	generic	—
`4.1(2c)`	affected	generic	—
`4.0(4l)`	affected	generic	—
`4.1(4a)`	affected	generic	—
`4.1(3c)`	affected	generic	—
`4.1(3d)`	affected	generic	—
`4.2(1c)`	affected	generic	—
`4.2(1d)`	affected	generic	—
`4.0(4m)`	affected	generic	—
`4.1(3e)`	affected	generic	—
`4.2(1f)`	affected	generic	—
`4.1(3f)`	affected	generic	—
`4.2(1i)`	affected	generic	—
`4.1(3h)`	affected	generic	—
`4.2(1k)`	affected	generic	—
`4.2(1l)`	affected	generic	—
`4.0(4n)`	affected	generic	—
`4.2(1m)`	affected	generic	—
`4.1(3i)`	affected	generic	—
`4.2(2a)`	affected	generic	—
`4.2(1n)`	affected	generic	—
`4.1(3j)`	affected	generic	—
`4.2(2c)`	affected	generic	—
`4.2(2d)`	affected	generic	—
`4.2(3b)`	affected	generic	—
`4.1(3k)`	affected	generic	—
`4.0(4o)`	affected	generic	—
`4.2(2e)`	affected	generic	—
`4.2(3d)`	affected	generic	—
`4.2(3e)`	affected	generic	—
`4.2(3g)`	affected	generic	—
`4.1(3l)`	affected	generic	—
`4.3(2b)`	affected	generic	—
`4.2(3h)`	affected	generic	—
`4.2(3i)`	affected	generic	—
`4.3(2c)`	affected	generic	—
`4.1(3m)`	affected	generic	—
`4.3(2e)`	affected	generic	—
`4.3(3a)`	affected	generic	—
`4.2(3j)`	affected	generic	—
`4.3(3c)`	affected	generic	—
`4.3(4a)`	affected	generic	—
`4.2(3k)`	affected	generic	—
`4.3(4b)`	affected	generic	—
`4.3(4c)`	affected	generic	—
`4.2(3l)`	affected	generic	—
`4.3(4d)`	affected	generic	—
`4.3(2f)`	affected	generic	—
`4.2(3m)`	affected	generic	—
`4.3(5a)`	affected	generic	—
`4.3(4e)`	affected	generic	—
`4.1(3n)`	affected	generic	—
`4.3(4f)`	affected	generic	—
`4.2(3n)`	affected	generic	—
`4.3(5c)`	affected	generic	—
`4.2(3o)`	affected	generic	—
`4.3(5d)`	affected	generic	—
`4.3(6a)`	affected	generic	—
`4.3(6b)`	affected	generic	—
`4.3(5e)`	affected	generic	—
`4.3(6c)`	affected	generic	—
`4.2(3p)`	affected	generic	—
`4.3(6d)`	affected	generic	—
`4.3(6e)`	affected	generic	—
`4.3(6f)`	affected	generic	—
`4.2(3r)`	affected	generic	—
`4.3(6g)`	affected	generic	—
`4.3(6h)`	affected	generic	—
`4.2(3s)`	affected	generic	—
`4.3(6i)`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.486% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-napi-rce-r2shwu2j

History

Oct 11, 2026 12:30 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco nx-os Software Cisco unified Computing System Manager
Vendors & Products		Cisco Cisco nx-os Software Cisco unified Computing System Manager

Oct 7, 2026 7:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Oct 7, 2026 4:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		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.
Title		Cisco NX-OS Software NX-API Remote Code Execution Vulnerability
Weaknesses		CWE-122
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-napi-rce-r2shwu2j
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}`