Vulnerability in Microsoft Windows 10

CVE-2020-1243

<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>

EPSS: 0.009 (56.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

References

Frequently asked questions

What is CVE-2020-1243?
CVE-2020-1243 is a high-severity vulnerability in Microsoft Windows 10. CVSS score: 7.8/10. Published 2020-10-16.
How severe is CVE-2020-1243?
High severity. CVSS v3 base score is 7.8 out of 10.