{"id":"CVE-2019-17624","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-17624","generatedAt":"2026-10-27T20:20:45.533Z","title":"\"\" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap.","description":"\"\" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap. For example, by sending ct.c_char 1000 times, an attacker can cause a denial of service (application crash) or possibly have unspecified other impact. Note: It is disputed if the X.Org X Server is involved or if there is a stack overflow.","published":"2019-10-16T11:15:16.000Z","lastModified":"2026-06-17T02:24:18.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["x.org/x server"],"epss":{"score":0.03694,"percentile":0.89636,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2019-10-16","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":47507,"kind":"exploit","title":"X.Org X Server 1.20.4 - Local Stack Overflow","url":"https://www.exploit-db.com/exploits/47507","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/local/47507.py","file":"exploits/linux/local/47507.py","published":"2019-10-16","added":"2019-10-16","updated":"2019-10-16","author":"s4vitar","type":"local","platform":"linux","port":null,"verified":false,"codes":["CVE-2019-17624"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 3.7%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/154868/X.Org-X-Server-1.20.4-Local-Stack-Overflow.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/47507","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.x.org/releases/individual/xserver/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/154868/X.Org-X-Server-1.20.4-Local-Stack-Overflow.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/47507","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.x.org/releases/individual/xserver/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-17624","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."}