{"id":"CVE-2005-1802","aliases":["EUVD-2005-1804","GHSA-c5fw-9qc8-grvm"],"status":"published","title":"Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash)...","description":"Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISAKMP header.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.01591,"percentile":0.75781,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2005-05-27T04:00:00Z","modified":"2026-06-16T22:13:43Z","products":[{"vendor":"nortel","product":"contivity"},{"vendor":"nortel","product":"vpn_router_1010"},{"vendor":"nortel","product":"vpn_router_1050"},{"vendor":"nortel","product":"vpn_router_1100"},{"vendor":"nortel","product":"vpn_router_1700"},{"vendor":"nortel","product":"vpn_router_1740"},{"vendor":"nortel","product":"vpn_router_2700"},{"vendor":"nortel","product":"vpn_router_5000"},{"vendor":"nortel","product":"vpn_router_600"}],"references":[{"url":"http://securitytracker.com/id?1014068","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.securityfocus.com/bid/13792","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.nta-monitor.com/news/vpn-flaws/nortel/vpn-router-dos/","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/399423","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2005-1802"},{"url":"http://www.nta-monitor.com/news/vpn-flaws/nortel/vpn-router-dos"},{"url":"https://github.com/advisories/GHSA-c5fw-9qc8-grvm"}],"sources":{"cve":[{"id":"CVE-2005-1802","description":"Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISAKMP header.","status":"published","published":"2005-06-01T04:00:00Z","modified":"2024-08-07T22:06:56.911Z","updated_at":"2026-11-02T14:33:40.245652Z"}],"euvd":[{"id":"EUVD-2005-1804","description":"Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISAKMP header.","status":"published","published":"2005-06-01T04:00:00Z","modified":"2024-08-07T22:06:56Z","updated_at":"2026-11-03T01:15:32.821479Z"}],"ghsa":[{"id":"GHSA-c5fw-9qc8-grvm","title":"Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash)...","description":"Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISAKMP header.","status":"published","published":"2022-05-01T02:02:03Z","modified":"2025-04-03T04:13:51Z","updated_at":"2026-11-02T15:00:41.656394Z"}],"nvd":[{"id":"CVE-2005-1802","description":"Nortel VPN Router (aka Contivity) allows remote attackers to cause a denial of service (crash) via an IPsec IKE packet with a malformed ISAKMP header.","status":"published","published":"2005-05-27T04:00:00Z","modified":"2026-06-16T22:13:43.047Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:55.600202Z"}]}}