{"action":"Upgrade thunderbird to 1:78.10.0-1 or later.","affected":[{"fixed":"1:78.10.0-1","introduced":"0"}],"component":"thunderbird","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1:78.10.0-1"],"id":"tcs_01M5NFJKV3ACEAPHX77RKQZQTA","modified_at":"2026-10-23T18:03:12.816671095Z","published_at":"2021-06-24T14:15:09.797Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-29946","https://security-tracker.debian.org/tracker/CVE-2021-29946"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-29946#Debian:13/thunderbird","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-29946"}],"summary":"Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox E"}