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CVE-2019-1471

29
FAUCET Score

CVE-2019-1471 is a high-severity remote code execution vulnerability affecting Windows Hyper-V on Windows 10, Server 2016, and Server 2019. It allows an authenticated user on a guest operating system to execute arbitrary code on the host due to improper input validation. With a CVSS score of 8.2, this vulnerability has a local attack vector with low complexity, enabling a complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), it has received some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
1803CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:x64:*
1809CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*
1903CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:x64:*
1909CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*
1803CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.5
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.10%
Probability of exploitation in next 30 days
EPSS Percentile
94.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0810 is in the 100th percentile among its peer group of 360 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1803 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server, version 1803 (Server Core Installation)
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1903 for x64-based Systems
View patch
microsoftpatch availablevia msrc
Product: Windows Server, version 1903 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows Server, version 1909 (Server Core installation)
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1909 for x64-based Systems
View patch

Vendor Advisories (1)

microsoft2019-Dec/CVE-2019-1471Critical

Windows Hyper-V Remote Code Execution Vulnerability

Dec 10, 2019

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2019-1471
PatchVendor Advisory