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Vulnerabilities CVE-2026-48914

CVE-2026-48914

Medium
Open
TLP:CLEAR

Qemu-kvm: heap buffer overflow in virtio-blk scsi request handling

NVD CVE.org
Critical Infrastructure DDoS

AI Analysis

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Description

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.

Details

CVSS Score
6.7
EPSS Score
0.16%

5.5th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
Confidence
90%
Published
Jun 12, 2026
Last Modified
Aug 21, 2026
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