{"cve_id":"CVE-2017-14492","published":"2017-10-03T01:29:02.027000+00:00","last_modified":"2026-06-17T01:06:14.810000+00:00","vuln_status":"Modified","description":"Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted IPv6 router advertisement request.","cvss_version":"3.0","cvss_vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","base_score":9.8,"base_severity":"CRITICAL","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-119"],"in_kev":false,"kev_date_added":null,"kev_ransomware":false,"epss_score":0.94475,"epss_percentile":0.99853,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T08:38:56.699656+00:00","first_seen":"2017-10-03T01:29:02.027000+00:00","kev_first_seen":null,"novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["canonical","debian","novell","redhat","thekelleys"],"products":["debian_linux","dnsmasq","enterprise_linux_desktop","enterprise_linux_server","enterprise_linux_workstation","leap","ubuntu_linux"],"affected":[{"vendor":"canonical","product":"ubuntu_linux","ranges":["14.04","16.04","17.04"]},{"vendor":"debian","product":"debian_linux","ranges":["7.0","7.1","9.0"]},{"vendor":"redhat","product":"enterprise_linux_desktop","ranges":["7.0"]},{"vendor":"redhat","product":"enterprise_linux_server","ranges":["7.0"]},{"vendor":"redhat","product":"enterprise_linux_workstation","ranges":["7.0"]},{"vendor":"thekelleys","product":"dnsmasq","ranges":["≤ 2.77"]}]}