Untrusted Pointer Dereference in Windows Hyper-V

Publication date: 2026-09-08

Last updated on: 2026-09-10

Assigner: Microsoft Corporation

Description

Untrusted pointer dereference in Windows Hyper-V allows an authorized attacker to execute code locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-08

Last Modified

2026-09-10

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-80083

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2025	to 10.0.26100.33438 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7582 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7582 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9445 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9445 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9445 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9445 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2954 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2954 (exc)
microsoft	windows_server_2022	to 10.0.20348.5622 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-822	The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.

Attack-Flow Graph

Executive Summary

This vulnerability involves an untrusted pointer dereference in Windows Hyper-V. An authorized attacker can exploit this to execute arbitrary code locally on an affected system.

Impact Analysis

An attacker could gain control of your system, install programs, view or delete data, or create new accounts with full user rights if they exploit this vulnerability.

Mitigation Strategies

Apply the latest security updates from Microsoft for Windows Hyper-V as soon as possible to patch the untrusted pointer dereference vulnerability.

Hi! I’m here to help you understand CVE-2026-80083. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70