{"id":"CVE-2003-1250","aliases":["EUVD-2003-1240","GHSA-v447-3wq3-529v"],"status":"published","title":"Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP...","description":"Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN packets to the WAN interface using a port scanner such as nmap.","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":"2026-11-08","score":0.01809,"percentile":0.7875,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2003-12-31T05:00:00Z","modified":"2026-06-16T22:03:47Z","products":[{"vendor":"efficient_networks","product":"5861_dsl_router"}],"references":[{"url":"http://www.securityfocus.com/archive/1/308008","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0015.html","tags":["mailing-list","x_refsource_VULNWATCH","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/6573","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securitytracker.com/id?1005910","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.iss.net/security_center/static/11032.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://securitytracker.com/id?1005980","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/306081","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2003-1250"},{"url":"https://github.com/advisories/GHSA-v447-3wq3-529v"}],"sources":{"cve":[{"id":"CVE-2003-1250","description":"Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN packets to the WAN interface using a port scanner such as nmap.","status":"published","published":"2005-11-16T07:37:00Z","modified":"2024-08-08T02:19:45.98Z","updated_at":"2026-11-02T14:20:16.411288Z"}],"euvd":[{"id":"EUVD-2003-1240","description":"Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN packets to the WAN interface using a port scanner such as nmap.","status":"published","published":"2005-11-16T07:37:00Z","modified":"2024-08-08T02:19:45Z","updated_at":"2026-11-03T01:15:04.43595Z"}],"ghsa":[{"id":"GHSA-v447-3wq3-529v","title":"Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP...","description":"Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN packets to the WAN interface using a port scanner such as nmap.","status":"published","published":"2022-04-29T01:27:45Z","modified":"2023-01-30T05:02:03Z","updated_at":"2026-11-02T14:46:33.145275Z"}],"nvd":[{"id":"CVE-2003-1250","description":"Efficient Networks 5861 DSL router, when running firmware 5.3.80 configured to block incoming TCP SYN, packets allows remote attackers to cause a denial of service (crash) via a flood of TCP SYN packets to the WAN interface using a port scanner such as nmap.","status":"published","published":"2003-12-31T05:00:00Z","modified":"2026-06-16T22:03:47.96Z","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":"2026-11-02T14:00:48.212104Z"}]}}