CVE-2020-15931: Netwrix Account Lockout Examiner

High severity, CVSS 7.5. EPSS: 3.7% chance of exploitation in the next 30 days.

Netwrix Account Lockout Examiner before 5.1 allows remote attackers to capture the Net-NTLMv1/v2 authentication challenge hash of the Domain Administrator (that is configured within the product in its installation state) by generating a single Kerberos Pre-Authentication Failed (ID 4771) event on a Domain Controller.

Affected products

• Netwrix Account Lockout Examiner: before 5.1 (fixed in 5.1)

Published 2020-10-20. Last modified 2026-06-17.