{"cve":"CVE-2021-1499","nvd":{"published":"2021-05-06T13:15:10.567","modified":"2026-06-17T03:31:55.550","status":"Modified","description":"A vulnerability in the web-based management interface of Cisco HyperFlex HX Data Platform could allow an unauthenticated, remote attacker to upload files to an affected device. This vulnerability is due to missing authentication for the upload function. An attacker could exploit this vulnerability by sending a specific HTTP request to an affected device. A successful exploit could allow the attacker to upload files to the affected device with the permissions of the tomcat8 user.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-306"],"references":["http://packetstormsecurity.com/files/163203/Cisco-HyperFlex-HX-Data-Platform-File-Upload-Remote-Code-Execution.html","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hyperflex-upload-KtCK8Ugz","http://packetstormsecurity.com/files/163203/Cisco-HyperFlex-HX-Data-Platform-File-Upload-Remote-Code-Execution.html","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hyperflex-upload-KtCK8Ugz"],"products":["cisco:hyperflex_hx_data_platform"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-1499","score":0.80426,"percentile":0.99623,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}