What’s Vulnerable › Vulnerabilities
CVE-2026-76471: Cisco NX-OS Software NX-API Remote Code Execution Vulnerability
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-07 · updated 2026-10-08
- Weakness: CWE-122
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
- Cisco NX-OS: 9.2(3), 9.2(2v), 9.2(1), 9.2(2t), 9.2(3y), 9.3(2) (+67)
- Cisco Unified Computing System (Managed): 4.0(1a), 4.1(1d), 4.0(4f), 4.0(4a), 4.0(4e), 4.0(4c) (+90)
In the news
- Cisco NX-OS Software NX-API Remote Code Execution Vulnerability
- Cisco Advance Notification for Publication of October 7, 2026, Security Advisories
References
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