{"id":"CVE-2020-27800","details":"A heap-based buffer over-read was discovered in the get_le32 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.","modified":"2026-08-18T13:53:58.413689Z","published":"2022-08-25T20:15:08.677Z","references":[{"type":"REPORT","url":"https://github.com/upx/upx/issues/395"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/upx/upx","events":[{"introduced":"69ca635c4c0ba474e9ca583dbb42e3d028c4533a"},{"last_affected":"69ca635c4c0ba474e9ca583dbb42e3d028c4533a"}],"database_specific":{"cpe":"cpe:2.3:a:upx:upx:4.0.0:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.0.0"},{"last_affected":"4.0.0"}],"source":"CPE_STRING"}}],"versions":["4.0.0","v4.0.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-27800.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}