PT-2020-4333 · Microsoft · Hyper-V+1

Published 2020-10-13 · Updated 2023-12-31 · CVE-2020-1243

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Microsoft Hyper-V (affected versions not specified)

Description: A denial of service issue exists due to improper validation of malicious data from a user on a guest operating system. An attacker with a privileged account on a guest operating system could exploit this by running a specially crafted application. The issue is resolved by addressing the conditions under which Hyper-V fails to handle certain requests.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2020-04833

CVE-2020-1243

Affected Products

Hyper-V

Windows

References · 6

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-1243 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04833 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1243 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2020-1243 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-1243 · Security Note