{"id":"CVE-2001-0861","aliases":["EUVD-2001-0844","GHSA-x7vm-cx3f-5pwf"],"status":"published","title":"Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to...","description":"Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies.","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":0.01675,"percentile":0.7702,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-12-06T05:00:00Z","modified":"2026-06-16T21:55:07Z","products":[{"vendor":"cisco","product":"12000_router"}],"references":[{"url":"http://www.ciac.org/ciac/bulletins/m-018.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/7536","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.osvdb.org/794","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.cisco.com/warp/public/707/GSR-unreachables-pub.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/3534","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0861"},{"url":"https://github.com/advisories/GHSA-x7vm-cx3f-5pwf"}],"sources":{"cve":[{"id":"CVE-2001-0861","description":"Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:37:06.457Z","updated_at":"2026-11-02T14:34:43.032065Z"}],"euvd":[{"id":"EUVD-2001-0844","description":"Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:37:06Z","updated_at":"2026-11-03T01:14:49.590185Z"}],"ghsa":[{"id":"GHSA-x7vm-cx3f-5pwf","title":"Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to...","description":"Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies.","status":"published","published":"2022-04-30T18:16:52Z","modified":"2023-01-30T05:05:06Z","updated_at":"2026-11-02T14:47:12.020843Z"}],"nvd":[{"id":"CVE-2001-0861","description":"Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies.","status":"published","published":"2001-12-06T05:00:00Z","modified":"2026-06-16T21:55:07.26Z","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":"2026-11-02T14:00:41.313877Z"}]}}