CVE-2026-48914

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

6.7 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-10/8/2026

CWE

CWE-122

קישורים

• 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/[email protected]/