{"id":"CVE-2021-22017","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-22017","summary":"Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization. A malicious actor with network access to port 443 on vCenter Server…","details":"Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to bypass proxy leading to internal endpoints being accessed.","published":"2021-09-23T12:13:01.000Z","modified":"2025-10-21T23:25:31.570Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.49177,"percentile":0.98831,"asOf":"2026-08-28"},"cisaKev":{"dateAdded":"2022-01-10","dueDate":"2022-01-24","knownRansomwareCampaignUse":false},"exploitsKnown":3,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://www.vmware.com/security/advisories/VMSA-2021-0020.html"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22017"}],"provenance":{"sources":["OSV.dev","NVD","CISA KEV","FIRST.org (EPSS)"],"lastVerified":"2025-10-21T23:25:31.570Z"}}