{"id":"CVE-2017-5992","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-5992","generatedAt":"2026-10-28T20:46:11.065Z","title":"Openpyxl 2.4.1 resolves external entities by default, which allows remote attackers to conduct XXE attacks via a crafted .xlsx document.","description":"Openpyxl 2.4.1 resolves external entities by default, which allows remote attackers to conduct XXE attacks via a crafted .xlsx document.","published":"2017-02-15T19:59:01.000Z","lastModified":"2026-06-17T01:21:35.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.2,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H"},"cwe":["CWE-611"],"affected":["python/openpyxl"],"epss":{"score":0.01411,"percentile":0.72532,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2017/02/07/5","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bitbucket.org/openpyxl/openpyxl/commits/3b4905f428e1","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bitbucket.org/openpyxl/openpyxl/issues/749","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854442","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2017/02/07/5","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bitbucket.org/openpyxl/openpyxl/commits/3b4905f428e1","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bitbucket.org/openpyxl/openpyxl/issues/749","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854442","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-5992","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."}