{"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_01M5NEYVY2D35QMR18Z9F5W850","modified_at":"2026-10-26T12:01:48.899468357Z","published_at":"2022-08-25T20:15:08.630Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-27799","https://security-tracker.debian.org/tracker/CVE-2020-27799"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-27799","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-27799"}],"summary":"A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0 via a crafted Mach-O file."}