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CVE-2019-0717

21
FAUCET Score

CVE-2019-0717 is a denial-of-service vulnerability in Microsoft Hyper-V Network Switch affecting Windows 10, Server 2016, and Server 2019. A highly privileged attacker on a guest VM could crash the host server by submitting specially crafted input to the network switch. This vulnerability has a CVSS score of 5.8 (Medium) due to its high privileges required and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
1809CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*
1903CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:x64:*
1903CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.3
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.10%
Probability of exploitation in next 30 days
EPSS Percentile
91.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0510 is in the 98th percentile among its peer group of 687 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

microsoftpatch availablevia nvd_reference
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

Vendor Advisories (1)

microsoft2019-Aug/CVE-2019-0717Important

Windows Hyper-V Denial of Service Vulnerability

Aug 13, 2019

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2019-0717
PatchVendor Advisory