| Vulnerability Name: | CVE-2020-1243 (CCN-189037) | ||||||||||||
| Assigned: | 2019-11-04 | ||||||||||||
| Published: | 2020-10-13 | ||||||||||||
| Updated: | 2020-10-21 | ||||||||||||
| Summary: | 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.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.The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests., aka 'Windows Hyper-V Denial of Service Vulnerability'. | ||||||||||||
| CVSS v3 Severity: | 7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) 6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
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| CVSS v2 Severity: | 4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
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| Vulnerability Type: | CWE-noinfo | ||||||||||||
| Vulnerability Consequences: | Denial of Service | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2020-1243 Source: XF Type: UNKNOWN ms-windows-cve20201243-dos(189037) Source: CCN Type: Microsoft Security TechCenter - October 2020 Windows Hyper-V Denial of Service Vulnerability Source: MISC Type: Patch, Vendor Advisory https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243 | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration CCN 1:  Denotes that component is vulnerable | ||||||||||||
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