CVE-2021-1227: cisco cisco nx-os software Cross-Site Request Forgery (CSRF)
Vulnerability summary
CVE-2021-1227 is a high (CVSS 8.1) Cross-Site Request Forgery (CSRF) vulnerability in cisco cisco nx-os software. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.9% of scored vulnerabilities.
Timeline
- 24-02-2021PublishedVulnerability first disclosed.
- 08-11-2024Last modifiedVulnerability information updated.
Description
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 metrics
4 scores · 2 sources · 3 versions- NVDNIST8.1HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
0.00 pp
From 0.69% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco2 products
- cisco nx-os softwaren/a
- nx-os8.4\(2a\) | 8.4\(3\) | 8.4\(3\)s19 | 9.3\(3\)idi9\(0.569\) | 7.3\(8\)n1\(0.809\)
1 vendor · 2 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-nxapi-csrf-wRMzWL9zVendor AdvisoryX Refsource CISCO