{"action":"Upgrade thunderbird to 1:78.5.1-1 or later.","affected":[{"fixed":"1:78.5.1-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:78.5.1-1"],"id":"tcs_01M5NEXQV7ZWHNKRVF26MGN5MY","modified_at":"2026-10-26T12:02:41.515797830Z","published_at":"2020-12-09T01:15:13.817Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-26970","https://security-tracker.debian.org/tracker/CVE-2020-26970"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-26970#Debian:14/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-26970"}],"summary":"When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, t"}