{"action":"Upgrade firefox-esr to 78.7.0esr-1 or later.","affected":[{"fixed":"78.7.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["78.7.0esr-1"],"id":"tcs_01M5NFF6EDPMZHTM02R07174SN","modified_at":"2026-10-23T18:02:46.742581101Z","published_at":"2021-02-26T03:15:13.510Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-23954","https://security-tracker.debian.org/tracker/CVE-2021-23954"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-23954#Debian:13/firefox-esr","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-23954"}],"summary":"Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability a"}