CVE-2026-48914

EUVD-2026-36408
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.7 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Debian logo
Debian Releases
Debian Product
Codename
qemu
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
1:11.0.2+ds-2
fixed
sid
1:11.0.2+ds-2
fixed
trixie
1:10.0.11+ds-0+deb13u1
fixed
trixie (security)
vulnerable
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
qemu
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-SLOF
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-accel-tcg-x86
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-arm
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-audio-alsa
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-audio-dbus
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-audio-pa
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-audio-pipewire
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-audio-spice
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-block-curl
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-block-iscsi
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-block-nfs
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-block-rbd
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-block-ssh
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-chardev-baum
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-chardev-spice
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-guest-agent
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-headless
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-hw-display-qxl
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-hw-display-virtio-gpu
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-hw-display-virtio-gpu-pci
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-hw-display-virtio-vga
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-hw-s390x-virtio-gpu-ccw
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-hw-usb-host
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-hw-usb-redirect
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-img
suse enterprise desktop 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ipxe
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ksm
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-lang
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ppc
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-pr-helper
suse enterprise desktop 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-s390x
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-skiboot
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-spice
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-tools
suse enterprise desktop 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ui-curses
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ui-dbus
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ui-gtk
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ui-opengl
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ui-spice-app
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-ui-spice-core
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-vmsr-helper
suse enterprise desktop 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
qemu-x86
suse enterprise sap 15 SP7
9.2.4-150700.3.23.1
fixed
suse enterprise server 15 SP7
9.2.4-150700.3.23.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
qemu-guest-agent
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-img
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-audio-pa
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-block-blkio
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-block-curl
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-block-rbd
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-common
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-core
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-device-display-virtio-gpu
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-device-display-virtio-gpu-ccw
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-device-display-virtio-gpu-pci
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-device-display-virtio-vga
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-device-usb-host
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-device-usb-redirect
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-docs
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-tools
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-ui-egl-headless
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-kvm-ui-opengl
RHEL 9
17:10.1.0-17.el9_8.4
fixed
qemu-pr-helper
RHEL 9
17:10.1.0-17.el9_8.4
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
ivshmem-tools
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-audio-alsa
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-audio-oss
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-audio-pa
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-audio-sdl
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-block-curl
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-block-dmg
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-block-iscsi
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-block-nfs
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-block-rbd
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-block-ssh
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-common
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-debuginfo
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-guest-agent
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-img
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-kvm
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-kvm-core
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-system-aarch64
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-system-aarch64-core
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-system-x86
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-system-x86-core
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-ui-curses
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-ui-gtk
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-ui-sdl
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-user
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-user-binfmt
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
qemu-user-static
Amazon Linux 2
10:3.1.0-8.amzn2.0.25
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
qemu
Azure Linux 3.0
0:9.1.0-8.azl3
fixed
Common Weakness Enumeration
References
https://access.redhat.com/errata/RHSA-2026:39311
https://access.redhat.com/security/cve/CVE-2026-48914
https://bugzilla.redhat.com/show_bug.cgi?id=2488283
https://lore.kernel.org/qemu-devel/20260526154957.1741622-1-stefanha@redhat.com/