{"id":"CVE-2004-0580","aliases":["EUVD-2004-0579","GHSA-f36j-2388-wq8x"],"status":"published","title":"DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45...","description":"DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer contents in a BOOTP reply packet, which allows remote attackers to obtain sensitive information.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.07986,"percentile":0.94794,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2004-06-23T04:00:00Z","modified":"2026-06-16T22:05:55Z","exploits":[{"source":"exploitdb","id":"EDB-24115","title":"Linksys - DHCP Information Disclosure","type":"remote","platform":"hardware","date":"2004-05-31","verified":true,"url":"https://www.exploit-db.com/exploits/24115"}],"products":[{"vendor":"linksys","product":"befcmu10"},{"vendor":"linksys","product":"befn2ps4"},{"vendor":"linksys","product":"befsr11"},{"vendor":"linksys","product":"befsr41"},{"vendor":"linksys","product":"befsr41w"},{"vendor":"linksys","product":"befsr81"},{"vendor":"linksys","product":"befsru31"},{"vendor":"linksys","product":"befsx41"},{"vendor":"linksys","product":"befvp41"},{"vendor":"linksys","product":"rv082"},{"vendor":"linksys","product":"wap55ag"},{"vendor":"linksys","product":"wrt54g"}],"references":[{"url":"http://linksys.custhelp.com/cgi-bin/linksys.cfg/php/enduser/std_adp.php?p_faqid=832\u0026p_%20%5Ccreated=1086294093\u0026p_sid=pU1X1idh\u0026p_lva=\u0026p_sp=cF9zcmNoPSZwX3NvcnRfYnk9JnBfZ3JpZHNvcnQ9%20%5CJnBfcm93X2NudD02NTQmcF9wYWdlPTE%2A\u0026p_li=","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/16142","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://secunia.com/advisories/11606","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://www.osvdb.org/6325","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://securitytracker.com/alerts/2004/May/1010288.html","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://marc.info/?l=bugtraq\u0026m=108662876129301\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/10329","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0580"},{"url":"http://linksys.custhelp.com/cgi-bin/linksys.cfg/php/enduser/std_adp.php?p_faqid=832\u0026p_%20\\created=1086294093\u0026p_sid=pU1X1idh\u0026p_lva=\u0026p_sp=cF9zcmNoPSZwX3NvcnRfYnk9JnBfZ3JpZHNvcnQ9%20\\JnBfcm93X2NudD02NTQmcF9wYWdlPTE*\u0026p_li="},{"url":"https://github.com/advisories/GHSA-f36j-2388-wq8x"}],"sources":{"cve":[{"id":"CVE-2004-0580","description":"DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer contents in a BOOTP reply packet, which allows remote attackers to obtain sensitive information.","status":"published","published":"2004-06-23T04:00:00Z","modified":"2024-08-08T00:24:26.462Z","updated_at":"2026-11-02T14:34:55.098814Z"}],"euvd":[{"id":"EUVD-2004-0579","description":"DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer contents in a BOOTP reply packet, which allows remote attackers to obtain sensitive information.","status":"published","published":"2004-06-23T04:00:00Z","modified":"2024-08-08T00:24:26Z","updated_at":"2026-11-03T01:15:18.677356Z"}],"ghsa":[{"id":"GHSA-f36j-2388-wq8x","title":"DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45...","description":"DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer contents in a BOOTP reply packet, which allows remote attackers to obtain sensitive information.","status":"published","published":"2022-04-29T02:57:58Z","modified":"2025-04-03T04:01:23Z","updated_at":"2026-11-02T15:00:38.944477Z"}],"nvd":[{"id":"CVE-2004-0580","description":"DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware version 1.45.7, does not properly clear previously used buffer contents in a BOOTP reply packet, which allows remote attackers to obtain sensitive information.","status":"published","published":"2004-08-06T04:00:00Z","modified":"2026-06-16T22:05:55.2Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:51.000028Z"}]}}