{"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_01M5NJZNB8RDWSGTKGVC6WD57J","modified_at":"2026-10-23T18:04:32.509605187Z","published_at":"2023-12-19T14:15:07.313Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-6856","https://security-tracker.debian.org/tracker/CVE-2023-6856"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-6856","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-6856"}],"summary":"The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and"}