PT-2026-48843

Name of the Vulnerable Software and Affected Versions QEMU affected versions not specified Description A flaw exists in the virtio-blk device where the system fails to properly validate the size of input descriptors before writing data. A malicious guest with high privileges can exploit this by...

Linux Distros Unpatched Vulnerability : CVE-2026-48914

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. ...

QEMU 8.1.x < 10.0.10 / 10.2.x < 10.2.3 / 11.0.x < 11.0.1 Privilege Escalation

The version of QEMU installed on the remote Windows host is affected by a privilege escalation vulnerability: - An integer overflow exists in the calcimagehostmem function within the virtio-gpu driver due to the lack of proper validation of user-supplied data before allocating a buffer. A local...

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....

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...

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....

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....

CVE-2026-45782

Cloud Hypervisor (virtio-block) is affected from 21.0 up to before 51.2. The issue arises in asynchronous virtio-block I/O completion when two descriptor chains reuse the same head_index, allowing a use-after-free that corrupts a bounce buffer if the duplicate operation completes before the origi...

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....

QEMU calc_image_hostmem Integer Overflow Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of QEMU. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the virtio-gpu driver. Th...

EulerOS Virtualization 2.13.1 : qemu (EulerOS-SA-2026-2156)

According to the versions of the qemu packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a...

OESA-2026-2557 kata-containers security update

This is core component of Kata Container, to make it work, you need a isulad/docker engine. Security Fixes: 'This vulnerability was fixed in Kata Containers 3.31.0:', 'Description:\n\nIn the runtime-rs standalone virtio-fs path, Kata Containers runs virtiofsd\nas root with --sandbox none --seccom...

Linux Distros Unpatched Vulnerability : CVE-2026-46207

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vsock/virtio: fix empty payload in tap skb for non-linear buffers For non-linear skbs, virtiotransportbuildskb goes through virtiotransportcopynonlinearskb to...

SUSE-SU-2026:21883-1 Security update for qemu

This update for qemu fixes the following issues - CVE-2025-14876: qemu-kvm: Unbounded allocation in virtio-crypto bsc1255400. - CVE-2026-0665: out-of-bounds heap access can lead to a denial of service or potential memory corruption bsc1256484. - CVE-2026-2243: incorrect bounds check leads to heap...

Bluetooth: virtio_bt: clamp rx length before skb_put

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Bluetooth: virtio_bt: validate rx pkt_type header length

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vsock/virtio: fix accept queue count leak on transport mismatch

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SUSE CVE-2026-46123

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtiobt: clamp rx length before skbput virtbtrxwork calls skbputskb, len where len comes directly from virtqueuegetbuf with no validation against the buffer we posted to the device. The RX skb is allocated in...