{"action":"Upgrade ytnef to 1.9.3-r1 or later.","affected":[{"fixed":"1.9.3-r1","introduced":"0"}],"component":"ytnef","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.20","exploited":false,"fixed_versions":["1.9.3-r1"],"id":"tcs_01M6H4M121G3JWS52TN7RP11P3","modified_at":"2026-11-03T06:32:58.439189957Z","published_at":"2021-03-04T22:15:14.657Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-3404","https://security.alpinelinux.org/vuln/CVE-2021-3404"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-3404#Alpine:v3.20/ytnef","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-3404"}],"summary":"In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a cr"}