---
id: CVE-2024-7409
title: A flaw was found in the QEMU NBD Server
summary: >-
  A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of
  service (DoS) attack via improper synchronization during socket closure when a
  client keeps a socket open as the server is taken offline.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-662
published: '2024-08-05'
updated: '2026-08-31'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-7409'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2024:10518'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:10528'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:10813'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:6811'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:6818'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:6964'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:7408'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:8991'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:9136'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:9620'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:9912'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2024-7409'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2302487'
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2025/09/msg00011.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20250502-0008/'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01027
epssPercentile: 0.62145
ingestedAt: '2026-08-31T19:13:05.802Z'
---

## Overview

A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline.

## Remediation

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