CVE-2020-0890
mediumpriority · track · 31EPSS 0.028 · 87 %ileexploit · PoCEURUUSEPSS · scored 2026-10-27
<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>
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (2)
Public proof-of-concept and weaponised exploit code.
affected products (31)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- http://www.nsfocus.net/vulndb/49844cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-0890cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0890cnnvd
- https://portal.msrc.microsoft.com/en-us/security-guidancePatchcnnvd
- https://portal.msrc.microsoft.com/zh-CN/security-guidance/advisory/CVE-2020-0890cnnvd
- https://vigilance.fr/vulnerability/Microsoft-Windows-vulnerabilities-of-September-2020-33277cnnvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0890enisa_euvd
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0890PatchVendor Advisorynvd
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