{"id":"CVE-2001-0895","aliases":["EUVD-2001-0878","GHSA-57pf-4wmq-w5w3"],"status":"published","title":"Multiple Cisco networking products allow remote attackers to cause a denial of service on the...","description":"Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table.","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":0.0235,"percentile":0.83805,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-11-15T05:00:00Z","modified":"2026-06-16T21:55:10Z","products":[{"vendor":"cisco","product":"catalyst_2900xl"},{"vendor":"cisco","product":"catalyst_2948g-l3"},{"vendor":"cisco","product":"catalyst_2950"},{"vendor":"cisco","product":"catalyst_3500xl"},{"vendor":"cisco","product":"catalyst_3550"},{"vendor":"cisco","product":"catalyst_4000"},{"vendor":"cisco","product":"catalyst_4908g-l3"},{"vendor":"cisco","product":"catalyst_5000"},{"vendor":"cisco","product":"catalyst_6000"},{"vendor":"cisco","product":"catalyst_8500"},{"vendor":"cisco","product":"distributed_director"}],"references":[{"url":"http://www.kb.cert.org/vuls/id/399355","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"http://www.cisco.com/warp/public/707/IOS-arp-overwrite-vuln-pub.shtml","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.osvdb.org/807","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.securityfocus.com/bid/3547","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/7547","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-0895"},{"url":"https://github.com/advisories/GHSA-57pf-4wmq-w5w3"}],"sources":{"cve":[{"id":"CVE-2001-0895","description":"Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table.","status":"published","published":"2002-06-25T04:00:00Z","modified":"2024-08-08T04:37:06.659Z","updated_at":"2026-11-02T14:34:43.032065Z"}],"euvd":[{"id":"EUVD-2001-0878","description":"Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table.","status":"published","published":"2002-06-25T04:00:00Z","modified":"2024-08-08T04:37:06Z","updated_at":"2026-11-03T01:14:49.590185Z"}],"ghsa":[{"id":"GHSA-57pf-4wmq-w5w3","title":"Multiple Cisco networking products allow remote attackers to cause a denial of service on the...","description":"Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table.","status":"published","published":"2022-04-30T18:16:56Z","modified":"2023-01-30T05:05:37Z","updated_at":"2026-11-02T14:47:19.332628Z"}],"nvd":[{"id":"CVE-2001-0895","description":"Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table.","status":"published","published":"2001-11-15T05:00:00Z","modified":"2026-06-16T21:55:10.683Z","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":"2026-11-02T14:00:40.572315Z"}]}}