{"id":"CVE-2019-13404","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-13404","generatedAt":"2026-10-28T20:25:51.768Z","title":"The MSI installer for Python through 2.7.16 on Windows defaults to the C:\\Python27 directory, which makes it easier for local users to deploy Trojan horse code.","description":"The MSI installer for Python through 2.7.16 on Windows defaults to the C:\\Python27 directory, which makes it easier for local users to deploy Trojan horse code. (This also affects old 3.x releases before 3.5.) NOTE: the vendor's position is that it is the user's responsibility to ensure C:\\Python27 access control or choose a different directory, because backwards compatibility requires that C:\\Python27 remain the default for 2.7.x","published":"2019-07-08T01:15:10.000Z","lastModified":"2026-06-17T02:16:43.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-552"],"affected":["python/python"],"epss":{"score":0.01261,"percentile":0.69474,"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 (1.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://docs.python.org/2/faq/windows.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://docs.python.org/2/faq/windows.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-13404","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."}