{"action":"Upgrade exim4 to 4.94.2-1 or later.","affected":[{"fixed":"4.94.2-1","introduced":"0"}],"component":"exim4","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.94.2-1"],"id":"tcs_01M5NEZCVVTP77WDRET24616HR","modified_at":"2026-09-11T11:02:31.649624821Z","published_at":"2021-05-06T13:15:09.750Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-28025","https://security-tracker.debian.org/tracker/CVE-2020-28025"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-28025#Debian:14/exim4","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-28025"}],"summary":"Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.len; thus, a crafted DKIM-Signature header might lea"}