PT-2025-36834 · Microsoft · Windows Hyper-V+1

Cbwang505 + 1 · Published 2025-09-09 · Updated 2025-10-06 · CVE-2025-54091

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: Windows Hyper-V (affected versions not specified)

Description: An integer overflow or wraparound in Windows Hyper-V can allow a locally authorized attacker to elevate privileges. This issue allows attackers to affect the system.

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

Integer Overflow

Heap Based Buffer Overflow

Weakness Enumeration

CWE-190

CWE-122

Related Identifiers

BDU:2025-10941

CVE-2025-54091

Affected Products

Windows

Windows Hyper-V

References · 9

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54091 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-54091 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-54091 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-54091 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54091 · Security Note
• https://bdu.fstec.ru/vul/2025-10941 · Security Note
• https://twitter.com/DavidMarquet19/status/1975093800235127210 · Twitter Post
• https://t.me/avleonovcom/1583 · Telegram Post
• https://twitter.com/CVEnew/status/1965509664353009792 · Twitter Post