CVE-2019-1254

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

An information disclosure vulnerability exists when Windows Hyper-V writes uninitialized memory to disk, aka 'Windows Hyper-V Information Disclosure Vulnerability'.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-908

Affected software

Vendor	Product	Versions
Microsoft	Windows Server	2016; 2016 (Core installation); version 1803 (Core Installation); 2019; 2019 (Core installation)
Microsoft	Windows	10 Version 1607 for x64-based Systems; 10 Version 1703 for x64-based Systems; 10 Version 1709 for x64-based Systems; 10 Version 1803 for x64-based Systems; 10 Version 1809 for x64-based Systems
Microsoft	Windows 10 Version 1903 for x64-based Systems	unspecified
Microsoft	Windows Server, version 1903 (Server Core installation)	unspecified

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1254Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1254Patch, Vendor Advisory

Timeline

Published: Sep 11, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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