{"action":"Upgrade firefox-esr to 128.10.1esr-1~deb12u1 or later.","affected":[{"fixed":"128.10.1esr-1~deb12u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["128.10.1esr-1~deb12u1"],"id":"tcs_01M5NNZC6NSHTBV1BE3C36QJ3K","modified_at":"2026-10-01T08:47:36.692811747Z","published_at":"2025-05-17T22:15:19.653Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-4919","https://security-tracker.debian.org/tracker/CVE-2025-4919"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-4919","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-4919"}],"summary":"An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR"}