{"action":"Upgrade thunderbird to 1:68.7.0-1 or later.","affected":[{"fixed":"1:68.7.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1:68.7.0-1"],"id":"tcs_01M5NF7MQXVWPRMZK6MEZ0MSY7","modified_at":"2026-09-11T11:02:49.236396338Z","published_at":"2020-04-24T16:15:13.510Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-6821","https://security-tracker.debian.org/tracker/CVE-2020-6821"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-6821#Debian:12/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-6821"}],"summary":"When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory"}