{"id":"CVE-2019-6469","details":"An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -\u003e 9.11.6-S1 of BIND 9 Supported Preview Edition.","modified":"2026-09-13T14:39:28.686480Z","published":"2019-10-09T16:15:17.077Z","references":[{"type":"WEB","url":"https://support.f5.com/csp/article/K39751401?utm_source=f5support&amp%3Butm_medium=RSS"},{"type":"ADVISORY","url":"https://kb.isc.org/docs/cve-2019-6469"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/isc-projects/bind9","events":[{"introduced":"341e64a2de908ceec50ed46d243bf3402342735c"},{"last_affected":"eba38b89007f65bc6c1fdd2451034bbe3908b9a4"}],"database_specific":{"cpe":["cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*"],"extracted_events":[{"introduced":"9.10.5-s1"},{"last_affected":"9.10.5-s1"},{"introduced":"9.11.6-s1"},{"last_affected":"9.11.6-s1"}],"source":"CPE_STRING"}}],"versions":["9.10.5-s1","9.11.6-s1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6469.json"}},{"ranges":[{"type":"GIT","repo":"https://gitlab.isc.org/isc-projects/bind9","events":[{"introduced":"341e64a2de908ceec50ed46d243bf3402342735c"},{"last_affected":"eba38b89007f65bc6c1fdd2451034bbe3908b9a4"}],"database_specific":{"extracted_events":[{"introduced":"9.10.5-s1"},{"last_affected":"9.10.5-s1"},{"introduced":"9.11.6-s1"},{"last_affected":"9.11.6-s1"}],"source":"CPE_STRING","cpe":["cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*","cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*"]}}],"versions":["9.10.5-s1","9.11.6-s1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6469.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}