KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel

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The vulnerability of the Windows Hyper-V hardware virtualization system allows a perpetrator to execute arbitrary code.

The vulnerability of the Windows Hyper-V hardware virtualization system is related to the use of memory after it is freed. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

CVE-2025-27491

Use after free in Windows Hyper-V allows an authorized attacker to execute code over a network...

CVE-2025-27491

Use after free in Windows Hyper-V allows an authorized attacker to execute code over a network...

CVE-2025-27491 Windows Hyper-V Remote Code Execution Vulnerability

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CVE-2025-27491 Windows Hyper-V Remote Code Execution Vulnerability

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CVE-2025-27491

CVE-2025-27491 is a Windows Hyper-V remote code execution vulnerability described in the initial document as a use-after-free that could allow an authenticated attacker to execute code over the network. Connected sources corroborate Hyper-V as the affected component and reference patch delivery i...

Windows Hyper-V Remote Code Execution Vulnerability

Use after free in Windows Hyper-V allows an authorized attacker to execute code over a network...

SUSE CVE-2025-21977

In the Linux kernel, the following vulnerability has been resolved: fbdev: hypervfb: Fix hang in kdump kernel when on Hyper-V Gen 2 VMs Gen 2 Hyper-V VMs boot via EFI and have a standard EFI framebuffer device. When the kdump kernel runs in such a VM, loading the efifb driver may hang because of...

CVE-2025-27491: Use After Free

Use after free in Windows Hyper-V allows an authorized attacker to execute code over a network...

Microsoft Hyper-V 资源管理错误漏洞

Microsoft Hyper-V is an application from Microsoft Corporation USA. A system hypervisor virtualization technology that enables desktop virtualization. A resource management error vulnerability exists in Microsoft Hyper-V. An attacker exploiting this vulnerability could remotely execute code. The...

PT-2025-15549 · Microsoft · Windows Hyper-V +1

Name of the Vulnerable Software and Affected Versions: Windows Hyper-V affected versions not specified Description: The issue is related to a use after free condition in Windows Hyper-V, which can be exploited by a remote attacker to execute arbitrary code. This can potentially allow an attacker ...

USN-7421-1 linux-azure-5.15, linux-azure-fde-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; - Supe...

Malicious code in hyper-request (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 d6431cc277fd1d8f82ec5160b5943d5ee9ec08ca1a5c5ff9b1b45d67c233b1d2 The only functionality is to exfiltrated Roblox cookies. However, the current version does not contain the webhook url yet see reqhandler.py --- Category:...

MAL-2025-191763 Malicious code in hyper-request (PyPI)

--- -= Per source details. Do not edit below this line.=- Source: kam193 d6431cc277fd1d8f82ec5160b5943d5ee9ec08ca1a5c5ff9b1b45d67c233b1d2 The only functionality is to exfiltrated Roblox cookies. However, the current version does not contain the webhook url yet see reqhandler.py --- Category:...

SUSE CVE-2025-21978

In the Linux kernel, the following vulnerability has been resolved: drm/hyperv: Fix address space leak when Hyper-V DRM device is removed When a Hyper-V DRM device is probed, the driver allocates MMIO space for the vram, and maps it cacheable. If the device removed, or in the error path for devic...

The Bug Report - March 2025 Edition

The Bug Report - March 2025 Edition By Jonathan Omakun · April 3, 2025 Why am I here? Welcome to the March 2025 edition of The Bug Report—where the bracket-breaking isn’t just happening on the court. While US college basketball fans are busy filling out brackets and chasing Cinderella stories,...

USN-7407-1 linux-hwe-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; - Supe...

SUSE CVE-2025-21976

In the Linux kernel, the following vulnerability has been resolved: fbdev: hypervfb: Allow graceful removal of framebuffer When a Hyper-V framebuffer device is unbind, hypervfb driver tries to release the framebuffer forcefully. If this framebuffer is in use it produce the following WARN and henc...

USN-7401-1: Linux kernel (AWS) vulnerabilities

Chenyuan Yang discovered that the CEC driver driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2024-23848 Attila Szász discovered that the HFS+ file system...