Heap-based Buffer Overflow Affecting qemu package, versions <1:10.0.8+ds-0+deb13u1+e3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-ECHOLATEST-QEMU-18322020
  • published27 Jul 2026
  • disclosed12 Jun 2026

Introduced: 12 Jun 2026

CVE-2026-48914  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Echo:latest qemu to version 1:10.0.8+ds-0+deb13u1+e3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1