{"action":"Upgrade upx-ucl to 4.2.2-1 or later.","affected":[{"fixed":"4.2.2-1","introduced":"0"}],"component":"upx-ucl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.2.2-1"],"id":"tcs_01M5NEYVP5VJ4H08FQKDBK5XNK","modified_at":"2026-10-26T12:02:42.461855554Z","published_at":"2022-08-25T20:15:08.583Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-27798","https://security-tracker.debian.org/tracker/CVE-2020-27798"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-27798","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-27798"}],"summary":"An invalid memory address reference was discovered in the adjABS function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file."}