CVE-2026-48914

MEDIUM EPSS 2.2%

Published Jun 12, 20262w ago · Modified Jun 17, 20261w ago

6.7 CVSS 3.1

Medium

Published Jun 12, 2026 2w ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

6.7

Exploitability

1.5

Impact

4.7

Vector string

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H

Attack Vector Local

Attack Complexity Low

Privileges Required High

User Interaction None

Scope Changed

Confidentiality None

Integrity Low

Availability High

Threat Intelligence

EPSS Exploit Probability

2.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-122

References 3

access.redhat.com https://access.redhat.com/security/cve/CVE-2026-48914
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2488283
lore.kernel.org https://lore.kernel.org/qemu-devel/20260526154957.1741622-1-stefanha@redhat.com/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.