p>A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.</p> <p>To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.</p> <p>The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.</p>
| Link | Resource |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0904 | Patch Vendor Advisory |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0904 | Patch Vendor Advisory |
Configuration 1 (hide)
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23 Feb 2026, 17:18
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) <p>A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.</p> <p>To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.</p> <p>The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.</p> |
21 Nov 2024, 04:54
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0904 - Patch, Vendor Advisory |
Published : 2020-09-11 17:15
Updated : 2026-02-23 17:18
NVD link : CVE-2020-0904
Mitre link : CVE-2020-0904
CVE.ORG link : CVE-2020-0904
JSON object : View
Improper Input Validation