{"id":"CVE-2005-0877","aliases":["DEBIAN-CVE-2005-0877","EUVD-2005-0878","GHSA-h3r9-mx35-pp5w"],"status":"published","title":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that...","description":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0197,"percentile":0.80518,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-346"],"published":"2005-03-26T05:00:00Z","modified":"2026-10-23T04:00:19Z","fixes":[{"ecosystem":"Debian:12","package":"dnsmasq","fixed_in":["2.21"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"dnsmasq","fixed_in":["2.21"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"dnsmasq","fixed_in":["2.21"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"dnsmasq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.21"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"dnsmasq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.21"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"dnsmasq","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.21"}]}]}],"products":[{"vendor":"thekelleys","product":"dnsmasq"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/19826","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://secunia.com/advisories/14691","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Broken Link","Patch","Vendor Advisory","advisory","fix"]},{"url":"http://www.thekelleys.org.uk/dnsmasq/CHANGELOG","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","advisory"]},{"url":"http://www.securityfocus.com/bid/12897","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Patch","Third Party Advisory","VDB Entry","advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2005-0877"},{"url":"https://github.com/advisories/GHSA-h3r9-mx35-pp5w"},{"url":"https://security-tracker.debian.org/tracker/CVE-2005-0877","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2005-0877","description":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.","status":"published","published":"2005-03-26T05:00:00Z","modified":"2024-08-07T21:28:29.032Z","updated_at":"2026-11-02T14:33:40.245652Z"}],"euvd":[{"id":"EUVD-2005-0878","description":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.","status":"published","published":"2005-03-26T05:00:00Z","modified":"2024-08-07T21:28:29Z","updated_at":"2026-11-03T01:15:36.335809Z"}],"ghsa":[{"id":"GHSA-h3r9-mx35-pp5w","title":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that...","description":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.","status":"published","published":"2022-05-01T01:52:44Z","modified":"2024-02-08T21:30:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:55:34.624515Z"}],"nvd":[{"id":"CVE-2005-0877","description":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.","status":"published","published":"2005-05-02T04:00:00Z","modified":"2026-06-16T22:11:58.53Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:00:54.933728Z"}],"osv":[{"id":"CVE-2005-0877","description":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.","status":"published","published":"2005-05-02T04:00:00Z","modified":"2026-04-10T03:36:59.614767Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:43:56.315348Z"},{"id":"DEBIAN-CVE-2005-0877","description":"Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.","status":"published","published":"2005-05-02T04:00:00Z","modified":"2026-10-23T04:00:19.489918201Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:22.831407Z"}]}}