{"id":"CVE-2016-5180","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-5180","generatedAt":"2026-10-27T18:47:02.680Z","title":"Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.","description":"Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.","published":"2016-10-03T15:59:03.000Z","lastModified":"2026-06-17T00:48:55.000Z","status":"Modified","sourceIdentifier":"chrome-cve-admin@google.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["c-ares/c-ares","c-ares project/c-ares","debian/debian linux","nodejs/node.js","canonical/ubuntu linux"],"epss":{"score":0.08583,"percentile":0.95039,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (8.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2017-0002.html","source":"chrome-cve-admin@google.com"},{"url":"http://www.debian.org/security/2016/dsa-3682","source":"chrome-cve-admin@google.com"},{"url":"http://www.securityfocus.com/bid/93243","source":"chrome-cve-admin@google.com"},{"url":"http://www.ubuntu.com/usn/USN-3143-1","source":"chrome-cve-admin@google.com"},{"url":"https://c-ares.haxx.se/CVE-2016-5180.patch","source":"chrome-cve-admin@google.com"},{"url":"https://c-ares.haxx.se/adv_20160929.html","source":"chrome-cve-admin@google.com"},{"url":"https://googlechromereleases.blogspot.in/2016/09/stable-channel-updates-for-chrome-os.html","source":"chrome-cve-admin@google.com"},{"url":"https://security.gentoo.org/glsa/201701-28","source":"chrome-cve-admin@google.com"},{"url":"https://source.android.com/security/bulletin/2017-01-01.html","source":"chrome-cve-admin@google.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0002.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2016/dsa-3682","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/93243","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3143-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://c-ares.haxx.se/CVE-2016-5180.patch","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://c-ares.haxx.se/adv_20160929.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://googlechromereleases.blogspot.in/2016/09/stable-channel-updates-for-chrome-os.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201701-28","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://source.android.com/security/bulletin/2017-01-01.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-5180","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}