CVE-2021-1227: high-severity vulnerability in Cisco NX-OS Software
Cisco NX-OS Software NX-API Cross-Site Request Forgery Vulnerability
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.7%
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. This vulnerability is due to insufficient CSRF protections for the NX-API on an affected device. An attacker could exploit this vulnerability by persuading a user of the NX-API to follow a malicious link. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the affected user. The attacker could view and modify the device configuration. Note: The NX-API feature is disabled by default.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected products
Cisco · Cisco NX-OS SoftwareRelated CVEs — Cisco NX-OS Software
In the same product, most dangerous first.
CVE-2024-20399MEDIUMCisco NX-OS Software CLI Command Injection VulnerabilityEPSS 4.3%KEVCVE-2022-20650HIGHCisco NX-OS Software NX-API Command Injection VulnerabilityEPSS 14.5%CVE-2022-20624HIGHCisco NX-OS Software Cisco Fabric Services Over IP Denial of Service VulnerabilityEPSS 12.4%CVE-2022-20623HIGHCisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service VulnerabilityEPSS 11.9%CVE-2026-76455CRITICALCisco NX-OS Software Security Hardening Release: October 2026 - Improper Access Control VulnerabilitiesEPSS 3.6%CVE-2022-20625MEDIUMCisco FXOS and NX-OS Software Cisco Discovery Protocol Service Denial of Service VulnerabilityEPSS 3.3%