{"action":"Upgrade flex to 2.6.1-1 or later.","affected":[{"fixed":"2.6.1-1","introduced":"0"}],"component":"flex","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.6.1-1"],"id":"tcs_01M5NBPA9C4W170V4P9NP775JB","modified_at":"2026-09-22T07:02:21.971952340Z","published_at":"2016-09-21T14:25:20.800Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-6354","https://security-tracker.debian.org/tracker/CVE-2016-6354"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-6354#Debian:14/flex","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-6354"}],"summary":"Heap-based buffer overflow in the yy_get_next_buffer function in Flex before 2.6.1 might allow context-dependent attackers to cause a denial of service or possibly execute arbitrary code via vectors i"}