{"action":"Upgrade firefox-esr to 52.6.0esr-1 or later.","affected":[{"fixed":"52.6.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["52.6.0esr-1"],"id":"tcs_01M5NDDZ43NVM4HPM6XM452XGS","modified_at":"2026-10-23T18:03:06.705768838Z","published_at":"2018-06-11T21:29:12.703Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-5099","https://security-tracker.debian.org/tracker/CVE-2018-5099"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-5099","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-5099"}],"summary":"A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously been freed, resulting in a potentially exploitable crash when the"}