{"action":"Upgrade firefox-esr to 115.2.0esr-1 or later.","affected":[{"fixed":"115.2.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["115.2.0esr-1"],"id":"tcs_01M5NJB69XWHVEWC3PFHTVHTAJ","modified_at":"2026-10-23T18:04:28.112268175Z","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:14/firefox-esr","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"}