{"action":"Upgrade unbound to 1.3.4-1 or later.","affected":[{"fixed":"1.3.4-1","introduced":"0"}],"component":"unbound","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.3.4-1"],"id":"tcs_01M5N9CQYT4328JTYMAA1MEJHB","modified_at":"2026-10-23T17:47:31.422542067Z","published_at":"2009-10-13T10:30:00.657Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2009-3602","https://security-tracker.debian.org/tracker/CVE-2009-3602"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2009-3602#Debian:14/unbound","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2009-3602"}],"summary":"Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in"}