PT-2021-1609 · Microsoft · Windows Hyper-V+1

Published 2021-01-12 · Updated 2024-10-08 · CVE-2021-1691

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

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

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

Description The issue is related to insufficient input validation in the Windows Hyper-V hardware virtualization system, which can be exploited by a remote attacker to cause a denial of service.

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:2021-00262

CVE-2021-1691

Affected Products

Windows

Windows Hyper-V

References · 8

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-1691 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00262 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1691 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1691 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1691 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1691 · Security Note
• https://t.me/cibsecurity/22035 · Telegram Post
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1691 · Note