{"cve":"CVE-2021-1397","nvd":{"published":"2021-05-06T13:15:09.950","modified":"2026-06-17T03:31:40.780","status":"Modified","description":"A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. This vulnerability is due to improper input validation of the parameters in an HTTP request. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to redirect a user to a malicious website. This vulnerability is known as an open redirect attack, which is used in phishing attacks to get users to visit malicious sites without their knowledge.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-601"],"references":["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-imc-openred-zAYrU6d2","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-imc-openred-zAYrU6d2"],"products":["cisco:c125_m5_firmware","cisco:c220_m5_firmware","cisco:c220_m6_firmware","cisco:c225_m6_firmware","cisco:c240_m5_firmware","cisco:c240_m6_firmware","cisco:c245_m6_firmware","cisco:c480_m5_firmware","cisco:c480_ml_m5_firmware","cisco:encs_5100_firmware","cisco:encs_5400_firmware","cisco:integrated_management_controller","cisco:ucs-e1120d-m3_firmware","cisco:ucs-e140d_firmware","cisco:ucs-e140dp_firmware","cisco:ucs-e140s-m1_firmware","cisco:ucs-e140s-m2_firmware","cisco:ucs-e140s_firmware","cisco:ucs-e160d_firmware","cisco:ucs-e160dp-m1_firmware","cisco:ucs-e160s-m3_firmware","cisco:ucs-e180d-m2_firmware","cisco:ucs-e180d-m3_firmware","cisco:ucs_manager","cisco:ucs_s3260_firmware"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-1397","score":0.00831,"percentile":0.57598,"date":"2026-10-31"},"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."]}