{"action":"Upgrade thunderbird to 1:115.2.0-1 or later.","affected":[{"fixed":"1:115.2.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:115.2.0-1"],"id":"tcs_01M5NJB6D1NHNZBA7EPF5D1QP5","modified_at":"2026-10-26T18:02:58.572002640Z","published_at":"2023-09-11T09:15:09.287Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-4577","https://security-tracker.debian.org/tracker/CVE-2023-4577"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-4577#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-4577"}],"summary":"When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash"}