CVEvulnerability

CVE-2021-40083

7.5 HIGH Published 2021-08-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-08-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-617

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).

Affected configurations

• nic knot resolver (< 5.3.2)

Related

Weakness · CWE (1)

  • CWE-617 Reachable Assertion weakness

References