{"action":"Upgrade thunderbird to 1:115.1.0-1 or later.","affected":[{"fixed":"1:115.1.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:115.1.0-1"],"id":"tcs_01M5NJ85VHTDJT1ACEPRVBN1YC","modified_at":"2026-10-24T09:47:36.269240980Z","published_at":"2023-08-01T15:15:10.030Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-4049","https://security-tracker.debian.org/tracker/CVE-2023-4049"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-4049#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-4049"}],"summary":"Race conditions in reference counting code were found through code inspection. These could have resulted in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox <"}