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01 Record

CVE-2019-1254

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

UnratedPUBLISHEDCNA: microsoft
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.32% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 70.5% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-09-11 21:24Z7 YR AGO
Last updated
2024-08-04 18:13Z2 YR AGO
Reserved
2018-11-26
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-908Use of Uninitialized ResourceBase
Data version
5.1
Document digest
e80571c949e53cfebe3fe5a77b1a22213865eaa5515c9ad91d2872f69fadf75c

05 Affected products

VendorProductVersionsPlatforms
MicrosoftWindows Server2016, 2016 (Core installation), version 1803 (Core Installation), 2019, 2019 (Core installation)—
MicrosoftWindows10 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—

06 References