{"cve":"CVE-2003-0190","nvd":{"published":"2003-05-12T04:00:00.000","modified":"2026-06-16T22:01:43.273","status":"Modified","description":"OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-203"],"references":["http://lab.mediaservice.net/advisory/2003-01-openssh.txt","http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html","http://marc.info/?l=bugtraq&m=105172058404810&w=2","http://marc.info/?l=bugtraq&m=106018677302607&w=2","http://www.redhat.com/support/errata/RHSA-2003-222.html"],"products":["openbsd:openssh","openpkg:openpkg","siemens:scalance_x204rna_ecc_firmware","siemens:scalance_x204rna_firmware"],"source":"nvd","synced_at":"2026-10-19T19:35:54.859949650+00:00"},"epss":{"cve":"CVE-2003-0190","score":0.76751,"percentile":0.99547,"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."]}