{"id":"CVE-2018-20573","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-20573","generatedAt":"2026-10-28T21:16:09.620Z","title":"The Scanner::EnsureTokensInQueue function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.","description":"The Scanner::EnsureTokensInQueue function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.","published":"2018-12-28T16:29:06.000Z","lastModified":"2026-06-17T01:53:07.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"cwe":["CWE-119"],"affected":["yaml-cpp project/yaml-cpp"],"epss":{"score":0.02525,"percentile":0.84786,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.53%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/jbeder/yaml-cpp/issues/655","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2024/Nov/0","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/jbeder/yaml-cpp/issues/655","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-20573","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."}