{"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:14","exploited":false,"fixed_versions":["4.2.2-1"],"id":"tcs_01M5NEYW92JNHDW3SBG6KCSNFC","modified_at":"2026-10-26T12:01:48.941170946Z","published_at":"2022-08-25T20:15:08.677Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-27800","https://security-tracker.debian.org/tracker/CVE-2020-27800"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-27800#Debian:14/upx-ucl","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-27800"}],"summary":"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."}