PT-2026-48843 · Red Hat · Red Hat Enterprise Linux 10+6

Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-48914

Mitre

CVSS v3.1

6.7

Medium

Base vector

AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H

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.

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-48914

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Red Hat Enterprise Linux For Nvidia 26

Red Hat Openshift Container Platform 4

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-48914 · Security Note
• https://lore.kernel.org/qemu-devel/[e-mail] · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2488283 · Note
• https://access.redhat.com/security/cve/CVE-2026-48914 · Note