{"id":"CVE-2002-2316","aliases":["EUVD-2002-2294","GHSA-89w8-c2hh-36r7"],"status":"published","title":"Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC...","description":"Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01232,"percentile":0.69145,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2002-12-31T05:00:00Z","modified":"2026-06-16T22:01:04Z","products":[{"vendor":"cisco","product":"catos"}],"references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2002-06/0209.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit"]},{"url":"http://www.securityfocus.com/bid/4790","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.iss.net/security_center/static/9148.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2002-05/0190.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-2316"},{"url":"https://github.com/advisories/GHSA-89w8-c2hh-36r7"}],"sources":{"cve":[{"id":"CVE-2002-2316","description":"Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.","status":"published","published":"2007-10-26T19:00:00Z","modified":"2024-09-16T20:02:35.479Z","updated_at":"2026-11-02T14:33:54.29664Z"}],"euvd":[{"id":"EUVD-2002-2294","description":"Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.","status":"published","published":"2007-10-26T19:00:00Z","modified":"2024-09-16T20:02:35Z","updated_at":"2026-11-03T00:55:17.735013Z"}],"ghsa":[{"id":"GHSA-89w8-c2hh-36r7","title":"Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC...","description":"Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.","status":"published","published":"2022-04-30T18:22:56Z","modified":"2023-01-30T05:06:02Z","updated_at":"2026-11-02T14:47:24.368617Z"}],"nvd":[{"id":"CVE-2002-2316","description":"Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-06-16T22:01:04.817Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:43.787686Z"}]}}