{"action":"Upgrade thunderbird to 1:78.7.0-1 or later.","affected":[{"fixed":"1:78.7.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:78.7.0-1"],"id":"tcs_01M5NFF6P339X4DJ810DCK24V3","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:12/thunderbird","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"}