---
id: CVE-2026-2243
title: A flaw was found in QEMU
summary: >-
  A flaw was found in QEMU. A specially crafted VMDK image could trigger an
  out-of-bounds read vulnerability, potentially leading to a 12-byte leak of
  sensitive information or a denial of service condition (DoS).
severity: medium
cvss: 5.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'
cwe:
  - CWE-125
published: '2026-02-19'
updated: '2026-08-21'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-2243'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-2243'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2440934'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00118
epssPercentile: 0.01961
ingestedAt: '2026-08-21T14:17:57.200Z'
---

## Overview

A flaw was found in QEMU. A specially crafted VMDK image could trigger an out-of-bounds read vulnerability, potentially leading to a 12-byte leak of sensitive information or a denial of service condition (DoS).

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.