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CVE-2019-1384

A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the...

9.9 Critical

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'.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

6.99%Up 2.4 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 9.9

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'.

Record
CVE-2019-1384
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0
6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness
CWE-522
Updated
2026-11-02
CVE List No score

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'.

Record
CVE-2019-1384
Updated
2026-11-02
EUVDEUVD-2019-9941 No score

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'.

Record
EUVD-2019-9941
Updated
2026-11-03
GitHub AdvisoriesGHSA-g3jj-564j-38qm 9.9

A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the...

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'.

Record
GHSA-g3jj-564j-38qm
CVSS 3.1
9.9 CriticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness
CWE-522
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-1384 is a critical vulnerability (CVSS 9.9) in Microsoft Windows, published November 12, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.99%, the 94th percentile. No source names a fixed version.

References

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