{"action":"Upgrade firefox-esr to 115.6.0esr-1~deb12u1 or later.","affected":[{"fixed":"115.6.0esr-1~deb12u1","introduced":"0"}],"component":"firefox-esr","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["115.6.0esr-1~deb12u1"],"id":"tcs_01M5NJZRPCM5YY6V0XXM65MQ4M","modified_at":"2026-10-26T18:02:54.546375633Z","published_at":"2023-12-19T14:15:07.560Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-6861","https://security-tracker.debian.org/tracker/CVE-2023-6861"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-6861","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-6861"}],"summary":"The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in headless mode. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121."}