CVE-2026-83671
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk34th percentile - higher than 34% of all known CVEs
Summary
Out-of-bounds read vulnerability in Windows Hyper-V allows an authorized attacker to disclose information locally.
Risk Assessment
An attacker could gain access to sensitive data stored in system memory, potentially leading to information disclosure.
Recommendation
Install the latest security updates provided by Microsoft for Windows Hyper-V.
Other vulnerabilities in Windows Hyper-V
See all- CVE-2017-8714High
The Hyper-V component on Microsoft Windows 8.1, Windows Server 2012 Gold and R2, Windows 10 1607, and Windows Server 2016 has a vulnerability allowing remote code execution when it fails to properly validate input from an authenticated user on a guest operating system.
- CVE-2017-8664High
A vulnerability in Windows Hyper-V allows remote code execution when the system fails to properly validate input from a privileged user on a guest operating system.
- CVE-2017-0193High
A vulnerability in Windows Hyper-V allows an attacker to gain elevated privileges on a target guest operating system when Hyper-V instruction emulation fails to properly enforce privilege levels.
- CVE-2017-0212High
Windows Hyper-V contains a vulnerability that allows for elevation of privilege when Microsoft Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 fail to properly validate vSMB packet data.
- CVE-2026-69910Critical
Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code remotely over a network.
- CVE-2026-40402Critical
A use after free vulnerability in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
- CVE-2025-21335HighActively exploited
A vulnerability in Windows Hyper-V NT Kernel Integration VSP allows for elevation of privilege. Technical details are not provided in the description.
- CVE-2025-21334HighActively exploited
A vulnerability in Windows Hyper-V NT Kernel Integration VSP allows for elevation of privilege. Technical details are not provided in the description.
- CVE-2025-21333HighActively exploited
A vulnerability in Windows Hyper-V NT Kernel Integration VSP allows for elevation of privilege. Technical details are not provided in the description.
- CVE-2024-38080HighActively exploited
A vulnerability in Windows Hyper-V allows for elevation of privilege. The NVD description does not provide technical details or required user interaction.
Original NVD description (English source)
Out-of-bounds read in Windows Hyper-V allows an authorized attacker to disclose information locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS