VULNERABILITY INTELLIGENCE

CVE-2021-40083

CVSS score7.5 HIGH
EPSS probability1.42%
CISA KEVNot currently listed
Published2021-08-25
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).

Weakness classification

  • nvd@nist.gov: CWE-617

Primary references