{"id":"CVE-2019-16784","details":"In PyInstaller before version 3.6, only on Windows, a local privilege escalation vulnerability is present in this particular case: If a software using PyInstaller in \"onefile\" mode is launched by a privileged user (at least more than the current one) which have his \"TempPath\" resolving to a world writable directory. This is the case for example if the software is launched as a service or as a scheduled task using a system account (TempPath will be C:\\Windows\\Temp). In order to be exploitable the software has to be (re)started after the attacker launch the exploit program, so for a service launched at startup, a service restart is needed (e.g. after a crash or an upgrade).","aliases":["GHSA-7fcj-pq9j-wh2r","PYSEC-2020-175"],"modified":"2026-04-11T20:52:40.496542Z","published":"2020-01-14T20:15:11.957Z","related":["GHSA-7fcj-pq9j-wh2r"],"references":[{"type":"FIX","url":"https://github.com/pyinstaller/pyinstaller/security/advisories/GHSA-7fcj-pq9j-wh2r"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pyinstaller/pyinstaller","events":[{"introduced":"0"},{"fixed":"6d4cce1f8eb80c0bf49d35876d28daa55a05800f"}],"database_specific":{"cpe":"cpe:2.3:a:pyinstaller:pyinstaller:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.6"}],"source":"CPE_FIELD"}}],"versions":["3.0","3.0.dev2","3.0.dev7","3.0.dev8","v3.1","v3.1.1","v3.2","v3.2.1","v3.3","v3.3.1","v3.4","v3.5"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-16784.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}