6175 matches found
CVE-2026-9539: Out-of-bounds Read
An out-of-bounds heap read and integer underflow in the TCP urgent data handling sosendoob in freedesktop.org libslirp version before v4.9.2 on hypervisor host environments e.g., QEMU allows a privileged guest VM attacker root or CAPNETRAW to leak gigabytes of sensitive host-process heap memory v...
PT-2026-51663
Name of the Vulnerable Software and Affected Versions libslirp versions prior to 4.9.2 Description An integer underflow and out-of-bounds heap read exist in the TCP urgent data handling sosendoob within hypervisor host environments, such as QEMU. A privileged attacker in a guest VM possessing roo...
kernel: Buffer overflow in drivers/xen/sys-hypervisor.c
A flaw was found in the Linux kernel. A buffer overflow vulnerability exists in the Xen hypervisor driver drivers/xen/sys-hypervisor.c. This flaw occurs because the HYPERVISORxenversionXENVERbuildid function returns a build ID that is not properly null-terminated. When the buildidshow function...
CVE-2026-42487
HVM guest I/O port accesses are subject to either emulation or at least translation. Translations are managed by the device model via XENDOMCTLioportmapping, and hence the linked list used may changed at any time. Traversal of those lists while handling guest I/O port accesses therefore needs...
[SECURITY] Fedora 44 Update: xen-4.21.1-4.fc44
This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...
kernel: Buffer overflow in drivers/xen/sys-hypervisor.c
A flaw was found in the Linux kernel. A buffer overflow vulnerability exists in the Xen hypervisor driver drivers/xen/sys-hypervisor.c. This flaw occurs because the HYPERVISORxenversionXENVERbuildid function returns a build ID that is not properly null-terminated. When the buildidshow function...
kernel: Buffer overflow in drivers/xen/sys-hypervisor.c
A flaw was found in the Linux kernel. A buffer overflow vulnerability exists in the Xen hypervisor driver drivers/xen/sys-hypervisor.c. This flaw occurs because the HYPERVISORxenversionXENVERbuildid function returns a build ID that is not properly null-terminated. When the buildidshow function...
Important: kernel-rt security update
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: mptcp: fix slab-use-after-free in inetlookupestablished CVE-2026-31669 kernel: xen/privcmd: fix double free via VMA splitting...
ALSA-2026:26427 Important: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: mptcp: fix slab-use-after-free in inetlookupestablished CVE-2026-31669 kernel: xen/privcmd: fix double free via VMA splitting CVE-2026-31787 kernel: Buffer overflow in...
ALSA-2026:26428 Important: kernel-rt security update
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: mptcp: fix slab-use-after-free in inetlookupestablished CVE-2026-31669 kernel: xen/privcmd: fix double free via VMA splitting...
Xen: x86 HVM I/O Port List Traversal (XSA-491)
HVM guest I/O port accesses are subject to either emulation or at least translation. Translations are managed by the device model via XENDOMCTLioportmapping, and hence the linked list used may changed at any time. Traversal of those lists while handling guest I/O port accesses therefore needs...
Xen: x86 Mismatched Mapcache Metadata (XSA-494)
Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache. This can result in privilege escalation, Denial of Servi...
CVE-2026-45782
Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. From version 21.0 to before version 51.2, a guest can cause a use-after-free in the cloud-hypervisor process by submitting two virtio-block descriptor chains that reuse the same headindex while asynchronous block I/O is enabled e....
The vulnerability of the Hyper-V component of the Windows operating system, allowing a hacker to execute arbitrary code
The vulnerability of the Hyper-V component of the Windows operating system is related to data type mixing errors. Exploiting this vulnerability can allow an attacker to execute arbitrary code...
The vulnerability of the Hyper-V component of the Windows operating system, allowing a hacker to execute arbitrary code
The vulnerability of the Hyper-V component of the Windows operating system is related to buffer overflows in dynamic memory. Exploiting this vulnerability can allow an attacker to execute arbitrary code...
CVE-2026-45782
Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. From version 21.0 to before version 51.2, a guest can cause a use-after-free in the cloud-hypervisor process by submitting two virtio-block descriptor chains that reuse the same headindex while asynchronous block I/O is enabled e....
Cloud hypervisor 资源管理错误漏洞
Cloud Hypervisor is a virtual machine monitor developed by Cloud Hypervisor Company, designed for modern cloud workloads. Versions of Cloud Hypervisor from 21.0 to 51.2 contained a resource management vulnerability. This vulnerability stemmed from submitting two virtio-block descriptors with the...
CVE-2026-45782: Use After Free
Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. From version 21.0 to before version 51.2, a guest can cause a use-after-free in the cloud-hypervisor process by submitting two virtio-block descriptor chains that reuse the same headindex while asynchronous block I/O is enabled e....
EUVD-2026-35870
Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. From version 21.0 to before version 51.2, a guest can cause a use-after-free in the cloud-hypervisor process by submitting two virtio-block descriptor chains that reuse the same headindex while asynchronous block I/O is enabled e....
CVE-2026-45782 Cloud Hypervisor: Use-after-free in virtio-block Async I/O Completion
Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. From version 21.0 to before version 51.2, a guest can cause a use-after-free in the cloud-hypervisor process by submitting two virtio-block descriptor chains that reuse the same headindex while asynchronous block I/O is enabled e....