{"action":"Upgrade zint to 2.9.1-1.1 or later.","affected":[{"fixed":"2.9.1-1.1","introduced":"0"}],"component":"zint","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.9.1-1.1"],"id":"tcs_01M5NFGW1BX4MCDWASQ3JSNE5Q","modified_at":"2026-10-23T18:03:26.244511767Z","published_at":"2021-02-26T22:15:20.847Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-27799","https://security-tracker.debian.org/tracker/CVE-2021-27799"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-27799#Debian:14/zint","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-27799"}],"summary":"ean_leading_zeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generato"}