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Vulnerability record · CVE-2019-1384 · published 12 November 2019

CVE-2019-1384: Microsoft windows 10 insufficiently protected credentials vulnerability

Microsoft · Windows 10

A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the session key and sign messages.To exploit this vulnerability, an attacker could send a specially crafted authentication request, aka 'Microsoft Windows Security Feature Bypass Vulnerability'.

9.9 CVSS 3.1 Critical EPSS 7.6% · top 5.6% CWE-522 · Insufficiently protected credentials
9.9CVSS 3.1 base score, v2 6.5
7.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the session key and sign messages.To exploit this vulnerability, an attacker could send a specially crafted authentication request, aka 'Microsoft Windows Security Feature Bypass Vulnerability'.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1384 PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1384 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-1384), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.