{"id":"CVE-2026-12246","details":"NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes.","modified":"2026-07-15T06:21:55.229882Z","published":"2026-06-25T07:16:45.197Z","references":[{"type":"FIX","url":"https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12246.txt"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nlnetlabs/nsd","events":[{"introduced":"5c760d0f00e282e1626cbadfc67e8bb11744f20b"},{"fixed":"fc930b88cb4f628defae9835449065945bda7ddc"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:nlnetlabs:nsd:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.14.0"},{"fixed":"4.14.3"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12246.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}]}