VULNERABILITY INTELLIGENCE

CVE-2017-15105

CVSS score5.3 MEDIUM
EPSS probability3.16%
CISA KEVNot currently listed
Published2018-01-23
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Weakness classification

  • CWE-20: Improper Input Validation
  • CWE-358: Improperly Implemented Security Check for Standard

Primary references