{"action":"Upgrade thunderbird to 1:115.6.0-1~deb12u1 or later.","affected":[{"fixed":"1:115.6.0-1~deb12u1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:115.6.0-1~deb12u1"],"id":"tcs_01M5NJZQVM71AGJT92KF8JCF6Y","modified_at":"2026-10-26T18:02:21.427394614Z","published_at":"2023-12-19T14:15:07.467Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-6859","https://security-tracker.debian.org/tracker/CVE-2023-6859"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-6859#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-6859"}],"summary":"A use-after-free condition affected TLS socket creation when under memory pressure. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121."}