{"cve":{"cve_id":"CVE-2003-0190","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.76751,"epss_percentile":0.99543,"epss_as_of":"2026-10-15","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.","published_at":"2003-05-02T00:00:00Z","last_modified_at":"2026-06-16T22:01:43.273000Z","cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-203"],"nvd_references":["http://www.redhat.com/support/errata/RHSA-2003-222.html","http://marc.info/?l=bugtraq&m=105172058404810&w=2","http://www.securityfocus.com/bid/7467","http://marc.info/?l=bugtraq&m=106018677302607&w=2","http://www.redhat.com/support/errata/RHSA-2003-224.html","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445","http://lab.mediaservice.net/advisory/2003-01-openssh.txt","http://www.turbolinux.com/security/TLSA-2003-31.txt","http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html","https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:02:30.803622Z"},"effective_severity":null,"badges":["exploit","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"openbsd","vendor_name":"openbsd","product_slug":"openssh","product_name":"openssh","version_start":null,"version_start_inclusive":null,"version_end":"3.6.1","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*"},{"vendor_slug":"openbsd","vendor_name":"openbsd","product_slug":"openssh","product_name":"openssh","version_start":"3.6.1","version_start_inclusive":true,"version_end":"3.6.1","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:openbsd:openssh:3.6.1:p1:*:*:*:*:*:*"},{"vendor_slug":"openpkg","vendor_name":"openpkg","product_slug":"openpkg","product_name":"openpkg","version_start":"1.2","version_start_inclusive":true,"version_end":"1.2","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:openpkg:openpkg:1.2:*:*:*:*:*:*:*"},{"vendor_slug":"openpkg","vendor_name":"openpkg","product_slug":"openpkg","product_name":"openpkg","version_start":"1.3","version_start_inclusive":true,"version_end":"1.3","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:openpkg:openpkg:1.3:*:*:*:*:*:*:*"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"scalance-x204rna-ecc-firmware","product_name":"scalance_x204rna_ecc_firmware","version_start":null,"version_start_inclusive":null,"version_end":"3.2.7","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:o:siemens:scalance_x204rna_ecc_firmware:*:*:*:*:*:*:*:*"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"scalance-x204rna-firmware","product_name":"scalance_x204rna_firmware","version_start":null,"version_start_inclusive":null,"version_end":"3.2.7","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*"}],"exploit_refs":[{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/3303","title":"Portable OpenSSH 3.6.1p-PAM/4.1-SuSE - Timing Attack","author":"Marco Ivaldi","disclosed_at":"2007-02-13"},{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/26","title":"OpenSSH/PAM 3.6.1p1 - 'gossh.sh' Remote Users Ident","author":"Nicolas Couture","disclosed_at":"2003-05-02"},{"source":"exploit-db","kind":"exploit-db","url":"https://www.exploit-db.com/exploits/25","title":"OpenSSH/PAM 3.6.1p1 - Remote Users Discovery Tool","author":"Maurizio Agazzini","disclosed_at":"2003-04-30"}],"news":[],"references":[{"url":"http://www.redhat.com/support/errata/RHSA-2003-222.html","source_type":"MISC","tags":[]},{"url":"http://marc.info/?l=bugtraq&m=105172058404810&w=2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.securityfocus.com/bid/7467","source_type":"MISC","tags":[]},{"url":"http://marc.info/?l=bugtraq&m=106018677302607&w=2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.redhat.com/support/errata/RHSA-2003-224.html","source_type":"MISC","tags":[]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445","source_type":"MISC","tags":[]},{"url":"http://lab.mediaservice.net/advisory/2003-01-openssh.txt","source_type":"MISC","tags":[]},{"url":"http://www.turbolinux.com/security/TLSA-2003-31.txt","source_type":"MISC","tags":[]},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf","source_type":"MISC","tags":[]}],"timeline":[{"type":"exploit_known","at":"2003-04-30T00:00:00Z","label":"Public exploit available","source":"exploit-db"},{"type":"published","at":"2003-05-02T00:00:00Z","label":"CVE published","source":null}]}