{"action":"Upgrade thunderbird to 1:128.12.0esr-1 or later.","affected":[{"fixed":"1:128.12.0esr-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:128.12.0esr-1"],"id":"tcs_01M5NP5T7M5GDV7RZFAPKKGZYP","modified_at":"2026-10-24T09:47:35.181964606Z","published_at":"2025-06-24T13:15:23.403Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-6425","https://security-tracker.debian.org/tracker/CVE-2025-6425"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-6425#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-6425"}],"summary":"An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode,"}