{"id":"CVE-2020-27797","details":"An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.","modified":"2026-04-10T04:25:41.069619Z","published":"2022-08-25T20:15:08.537Z","references":[{"type":"REPORT","url":"https://github.com/upx/upx/issues/390"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/upx/upx","events":[{"introduced":"0"},{"last_affected":"69ca635c4c0ba474e9ca583dbb42e3d028c4533a"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"4.0.0"}]}}],"versions":["v1.10","v1.11","v1.90","v1.91","v1.92","v1.93","v1.94","v1.95","v1.96","v2.00","v2.01","v2.90","v2.91","v2.92","v2.93","v3.00","v3.01","v3.02","v3.03","v3.04","v3.06","v3.07","v3.09","v3.91","v3.92","v3.93","v3.95","v3.96","v3.99","v4.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27797.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}