{"action":"Upgrade firefox-esr to 78.8.0esr-1 or later.","affected":[{"fixed":"78.8.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["78.8.0esr-1"],"id":"tcs_01M5NFFAWHRJZV53SWW36JS4PC","modified_at":"2026-10-23T18:02:52.232926293Z","published_at":"2021-02-26T02:15:13.243Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-23973","https://security-tracker.debian.org/tracker/CVE-2021-23973"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-23973#Debian:14/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-23973"}],"summary":"When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerabi"}