{"action":"Upgrade firefox-esr to 78.13.0esr-1 or later.","affected":[{"fixed":"78.13.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["78.13.0esr-1"],"id":"tcs_01M5NFJSQEXDR15K5ETMVRQR4R","modified_at":"2026-10-23T18:03:26.121807192Z","published_at":"2021-08-17T20:15:07.890Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-29985","https://security-tracker.debian.org/tracker/CVE-2021-29985"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-29985","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-29985"}],"summary":"A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR"}