{"cve":"CVE-2017-15105","nvd":{"published":"2018-01-23T16:29:00.273","modified":"2026-06-17T01:07:15.680","status":"Modified","description":"A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-20","CWE-358"],"references":["http://www.securityfocus.com/bid/102817","https://lists.debian.org/debian-lts-announce/2018/01/msg00039.html","https://lists.debian.org/debian-lts-announce/2019/02/msg00022.html","https://unbound.net/downloads/CVE-2017-15105.txt","https://usn.ubuntu.com/3673-1/"],"products":["canonical:ubuntu_linux","debian:debian_linux","nlnetlabs:unbound"],"source":"nvd","synced_at":"2026-10-19T20:48:34.567387330+00:00"},"epss":{"cve":"CVE-2017-15105","score":0.03162,"percentile":0.87993,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}