{"cve":"CVE-2021-33617","nvd":{"published":"2021-07-31T17:15:07.957","modified":"2026-06-17T03:54:52.573","status":"Modified","description":"Zoho ManageEngine Password Manager Pro before 11.2 11200 allows login/AjaxResponse.jsp?RequestType=GetUserDomainName&userName= username enumeration, because the response (to a failed login request) is null only when the username is invalid.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":[],"references":["https://herolab.usd.de/security-advisories/usd-2021-0015/","https://www.manageengine.com","https://www.manageengine.com/products/passwordmanagerpro/release-notes.html#pmp11200","https://herolab.usd.de/security-advisories/usd-2021-0015/","https://www.manageengine.com"],"products":["zohocorp:manageengine_password_manager_pro"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-33617","score":0.02055,"percentile":0.81282,"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."]}