{"id":"CVE-2005-2025","aliases":["EUVD-2005-2027","GHSA-m3gf-gx72-56g4"],"status":"published","title":"Cisco VPN 3000 Concentrator before 4.1.7.F allows remote attackers to determine valid groupnames...","description":"Cisco VPN 3000 Concentrator before 4.1.7.F allows remote attackers to determine valid groupnames by sending an IKE Aggressive Mode packet with the groupname in the ID field, which generates a response if the groupname is valid, but does not generate a response for an invalid groupname.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02342,"percentile":0.83748,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2005-06-20T04:00:00Z","modified":"2026-06-16T22:14:06Z","products":[{"vendor":"cisco","product":"vpn_3000_concentrator"},{"vendor":"cisco","product":"vpn_3000_concentrator_series_software"},{"vendor":"cisco","product":"vpn_3005_concentrator_software"},{"vendor":"cisco","product":"vpn_3015_concentrator"},{"vendor":"cisco","product":"vpn_3020_concentrator"},{"vendor":"cisco","product":"vpn_3030_concentator"},{"vendor":"cisco","product":"vpn_3060_concentrator"},{"vendor":"cisco","product":"vpn_3080_concentrator"}],"references":[{"url":"http://www.nta-monitor.com/news/vpn-flaws/cisco/VPN-Concentrator/index.htm","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/13992","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2005/0822","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2005-2025"},{"url":"https://github.com/advisories/GHSA-m3gf-gx72-56g4"}],"sources":{"cve":[{"id":"CVE-2005-2025","description":"Cisco VPN 3000 Concentrator before 4.1.7.F allows remote attackers to determine valid groupnames by sending an IKE Aggressive Mode packet with the groupname in the ID field, which generates a response if the groupname is valid, but does not generate a response for an invalid groupname.","status":"published","published":"2005-06-21T04:00:00Z","modified":"2024-08-07T22:15:36.602Z","updated_at":"2026-11-02T14:33:37.840038Z"}],"euvd":[{"id":"EUVD-2005-2027","description":"Cisco VPN 3000 Concentrator before 4.1.7.F allows remote attackers to determine valid groupnames by sending an IKE Aggressive Mode packet with the groupname in the ID field, which generates a response if the groupname is valid, but does not generate a response for an invalid groupname.","status":"published","published":"2005-06-21T04:00:00Z","modified":"2024-08-07T22:15:36Z","updated_at":"2026-11-03T01:15:32.408501Z"}],"ghsa":[{"id":"GHSA-m3gf-gx72-56g4","title":"Cisco VPN 3000 Concentrator before 4.1.7.F allows remote attackers to determine valid groupnames...","description":"Cisco VPN 3000 Concentrator before 4.1.7.F allows remote attackers to determine valid groupnames by sending an IKE Aggressive Mode packet with the groupname in the ID field, which generates a response if the groupname is valid, but does not generate a response for an invalid groupname.","status":"published","published":"2022-05-01T02:04:22Z","modified":"2023-01-30T05:06:56Z","updated_at":"2026-11-02T14:47:35.900123Z"}],"nvd":[{"id":"CVE-2005-2025","description":"Cisco VPN 3000 Concentrator before 4.1.7.F allows remote attackers to determine valid groupnames by sending an IKE Aggressive Mode packet with the groupname in the ID field, which generates a response if the groupname is valid, but does not generate a response for an invalid groupname.","status":"published","published":"2005-06-20T04:00:00Z","modified":"2026-06-16T22:14:06.01Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:55.600202Z"}]}}