PT-2026-32819 · Microsoft · Hyper-V+1

Published 2026-04-14 · Updated 2026-04-15 · CVE-2026-32149

Positive Technologies (AI Summary)

CVSS v3.1

7.3

High

Base vector

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

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

Description Improper input validation allows an authorized attacker to execute code locally. This issue may also allow remote attackers to execute arbitrary code and affect the system.

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

RCE

Heap Based Buffer Overflow

Integer Underflow

Weakness Enumeration

CWE-122

CWE-191

CWE-20

Related Identifiers

BDU:2026-05302

CVE-2026-32149

Affected Products

Hyper-V

Windows

References · 6

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32149 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-32149 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-32149 · Security Note
• https://bdu.fstec.ru/vul/2026-05302 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-32149 · Vendor Advisory
• https://twitter.com/CVEnew/status/2044358583777734949 · Twitter Post