CVE-2026-48914
Medium · 6.7CVSS
6.7
EPSS
0.2%
Published
Jun 12, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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