{"action":"Upgrade opendmarc to 1.4.0~beta1+dfsg-6 or later.","affected":[{"fixed":"1.4.0~beta1+dfsg-6","introduced":"0"}],"component":"opendmarc","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.4.0~beta1+dfsg-6"],"id":"tcs_01M5NFRKC6F2HTBVNVH44AVJV8","modified_at":"2026-10-23T18:03:15.217857510Z","published_at":"2021-06-10T15:15:09.680Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-34555","https://security-tracker.debian.org/tracker/CVE-2021-34555"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-34555#Debian:14/opendmarc","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-34555"}],"summary":"OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a multi-value From header field."}