{"action":"Upgrade firefox-esr to 52.2.0esr-1 or later.","affected":[{"fixed":"52.2.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["52.2.0esr-1"],"id":"tcs_01M5NCMT7279CJ8ZN60RCSVSHT","modified_at":"2026-09-01T20:02:41.351246648Z","published_at":"2018-06-11T21:29:07.763Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-7751","https://security-tracker.debian.org/tracker/CVE-2017-7751"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-7751#Debian:13/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-7751"}],"summary":"A use-after-free vulnerability with content viewer listeners that results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2."}