CVE-2026-40402 Windows Hyper-V Elevation of Privilege Vulnerability

...

CVE-2026-40402

The CVE-2026-40402 entry describes a use-after-free in Windows Hyper-V that enables local privilege escalation by an unauthenticated attacker. The vulnerability affects Hyper-V components and, per multiple connected sources, has been addressed by May 2026 security updates (e.g., KB5087420/KB50874...

CVE-2026-40402

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally...

Windows Hyper-V Elevation of Privilege Vulnerability

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally...

SUSE CVE-2026-43475

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 415.14082...

Microsoft Hyper-V 资源管理错误漏洞

Microsoft Hyper-V is an application developed by Microsoft Corporation in the United States. It is a system management program that enables desktop virtualization. There is a resource management vulnerability in Microsoft Hyper-V. Attackers can exploit this vulnerability to gain elevated...

KLA91040 Multiple vulnerabilities in Microsoft Windows

Multiple vulnerabilities were found in Microsoft Windows. Malicious users can exploit these vulnerabilities to cause denial of service, bypass security restrictions, gain privileges, execute arbitrary code, obtain sensitive information. Below is a complete list of vulnerabilities: 1. A denial of...

KB5087545: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (May 2026)

The remote Windows host is missing security update 5087545 or hotpatch 5087424. It is, therefore, affected by multiple vulnerabilities - Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network. CVE-2026-41089 - Use after free in Windows Hyper...

KB5087420: Windows 11 version 23H2 Security Update (May 2026)

The remote Windows host is missing security update 5087420. It is, therefore, affected by multiple vulnerabilities - Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network. CVE-2026-41096 - Use after free in Windows Hyper-V allows an...

CVE-2026-43475

A flaw was found in the Linux kernel's hvstorvsc component. When the kernel is configured with PREEMPTRT Real-Time Preemption and running on a Hyper-V virtual machine, a local process performing specific I/O operations can trigger a concurrency issue. This can lead to a system lock-up or crash,...

EUVD-2026-28781

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 415.14082...

CVE-2026-43475

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 415.14082...

CVE-2026-43475

CVE-2026-43475 affects the Linux kernel hv_storvsc driver when PREEMPT_RT is enabled on Hyper-V. The issue stems from scheduling while atomic in storvsc_queuecommand, which could lead to a lock-up under certain I/O loads (as reported in the vulnerability description and kernel traces). A fix has ...

CVE-2026-43475

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 415.14082...

CVE-2026-43475 scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 415.14082...

CVE-2026-43475 scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 415.14082...

Linux Distros Unpatched Vulnerability : CVE-2026-43475

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the follow splat and lock-up when running with PREEMPTRT enabled on Hyper-V: 415.140818 BU...

PT-2026-39136

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.19.0-rc7 Description An issue exists in the scsi storvsc component that causes a scheduling while atomic error and system lock-up when running on Hyper-V with PREEMPT RT enabled. This occurs within the storvsc queuecomma...

CVE-2026-43094

A flaw was found in the Linux kernel's ixgbevf driver. When running on Hyper-V virtual machines, a missing operation in the driver's Hyper-V operations table can lead to a null pointer dereference during feature negotiation. This vulnerability allows a local user to trigger a system crash,...

CVE-2026-43097

A flaw was found in the Linux kernel's PCI Hyper-V driver. During error handling, a specific resource identifier can be inadvertently freed twice. This double free vulnerability can lead to memory corruption, potentially causing system instability and a Denial of Service DoS...