{"action":"Upgrade firefox-esr to 91.4.0esr-1 or later.","affected":[{"fixed":"91.4.0esr-1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["91.4.0esr-1"],"id":"tcs_01M5NG1NMEVTGS01P32FAFBPVC","modified_at":"2026-10-23T18:03:39.181680291Z","published_at":"2021-12-08T22:15:10.107Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-43546","https://security-tracker.debian.org/tracker/CVE-2021-43546"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-43546","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-43546"}],"summary":"It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95."}