{"action":"Upgrade firefox-esr to 78.9.0esr-1 or later.","affected":[{"fixed":"78.9.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["78.9.0esr-1"],"id":"tcs_01M5NG022KD3F88YAJW5FE7VBM","modified_at":"2026-10-23T18:03:38.895357704Z","published_at":"2022-12-22T20:15:11.787Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-4127","https://security-tracker.debian.org/tracker/CVE-2021-4127"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-4127#Debian:14/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-4127"}],"summary":"An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited. This vulnerability affects Thunderbird < 78.9 and Firefox ESR < 78.9."}