{"action":"Upgrade libmatio to 1.5.30-2 or later.","affected":[{"fixed":"1.5.30-2","introduced":"0"}],"component":"libmatio","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.5.30-2"],"id":"tcs_01M5NNZSC8TZP7SC2Z71AY0V92","modified_at":"2026-10-01T08:47:32.793528757Z","published_at":"2025-12-30T20:16:00.217Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-50343","https://security-tracker.debian.org/tracker/CVE-2025-50343"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-50343#Debian:14/libmatio","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-50343"}],"summary":"An issue was discovered in matio 1.5.28. A heap-based memory corruption can occur in Mat_VarCreateStruct() when the nfields value does not match the actual number of strings in the fields array. This"}