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qemu

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.

Security Fix(es):

* qemu-kvm: Heap buffer overflow in virtio-blk SCSI request handling (CVE-2026-48914)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Detailed information about A flaw was found in QEMU's virtio-blk device. (CVE-2026-48914) affecting null qemu. Get real-time updates, technical details, and mit

A flaw was found in QEMU's virtio-blk device. (CVE-2026-48914) - Live Threat Intelligence - Threat Radar | OffSeq.com

https://access.redhat.com/errata/RHSA-2026:39311

https://access.redhat.com/security/updates/classification/#low

Canonical URL

https://access.redhat.com/errata/RHSA-2026:58571

https://access.redhat.com/security/updates/classification/#moderate

Red Hat Security Advisory: qemu-kvm security update

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. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process.

CVE-2026-48914 is a heap-based buffer overflow vulnerability in the virtio-blk device component of QEMU. The flaw arises because the device does not properly validate the size of input descriptors before writing data, allowing a malicious guest with high privileges to submit a malformed virtio-blk SCSI request. This can lead to an out-of-bounds write in the host's heap memory, potentially causing a denial of service (DoS) condition for the QEMU process. The vulnerability has a CVSS 3.1 base score of 6.7, reflecting a medium severity with local attack vector, low attack complexity, high privileges required, no user interaction, and impact limited to integrity and availability. Red Hat has published a security advisory and issued updates for Red Hat Enterprise Linux 9 addressing this vulnerability. However, the input data does not confirm patch availability or remediation status for Red Hat Enterprise Linux 10 version 1.1.0.

Detailed information about CVE-2026-48914: Heap-based Buffer Overflow in Red Hat Red Hat Enterprise Linux 10 affecting Red Hat Red Hat Enterprise Linux 10. Get 

CVE-2026-48914: Heap-based Buffer Overflow in Red Hat Red Hat Enterprise Linux 10 - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-48914: Heap-based Buffer Overflow


Red Hat Security Advisory: qemu-kvm security updateCVE-2026-48914 0 Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Security Fix(es): * qemu-kvm: Heap buffer overflow in virtio-blk SCSI request handling (CVE-2026-48914) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. LowVulnerability#gcve #osv #ubuntu-cve-2026-48914 Join the discussion	GCVE Database	07/14/2026, 20:53:12 UTC Added: 08/06/2026, 18:16:56 UTC
CVE-2026-48914: Heap-based Buffer OverflowCVE-2026-48914 0 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. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an out-of-bounds write in the host heap memory and a potential denial of service (DoS) for the QEMU process. MediumVulnerability#cve #cve-2026-48914 Join the discussion	CVE Database V5	06/12/2026, 09:42:36 UTC Added: 06/12/2026, 09:54:35 UTC

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