{"id":"CVE-2019-5591","aliases":[],"url":"https://o3.security/vulnerability/CVE-2019-5591","summary":"A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.","details":"A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.","published":"2020-08-14T16:15:16.070","modified":"2026-08-15T04:17:41.413","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.18422,"percentile":0.97021,"asOf":"2026-08-27"},"cisaKev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":true},"exploitsKnown":1,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://www.fortiguard.com/psirt/FG-IR-19-037"},{"type":"ADVISORY","url":"https://www.fortiguard.com/psirt/FG-IR-19-037"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5591"}],"provenance":{"sources":["OSV.dev","NVD","CISA KEV","FIRST.org (EPSS)"],"lastVerified":"2026-08-15T04:17:41.413"}}