{"action":"Upgrade thunderbird to 1:52.5.2-1 or later.","affected":[{"fixed":"1:52.5.2-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:52.5.2-1"],"id":"tcs_01M5NCNF6M9DFF8QB53R5DRN8A","modified_at":"2026-09-01T20:03:50.615178379Z","published_at":"2018-06-11T21:29:11.343Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-7829","https://security-tracker.debian.org/tracker/CVE-2017-7829"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-7829#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-7829"}],"summary":"It is possible to spoof the sender's email address and display an arbitrary sender address to the email recipient. The real sender's address is not displayed if preceded by a null character in the dis"}