Unknown · Knot Resolver · CVE-2021-40083
**Name of the Vulnerable Software and Affected Versions**
Knot Resolver versions prior to 5.3.2
**Description**
The issue is related to an assertion failure that can be triggered by a remote attacker in a specific edge case, involving NSEC3 with too many iterations used for a positive wildcard proof.
**Recommendations**
For versions prior to 5.3.2, update to version 5.3.2 or later to resolve the issue.