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Vulnerability record · CVE-2024-3447 · published 14 November 2024

CVE-2024-3447: Qemu heap-based buffer overflow vulnerability

Qemu · Qemu

A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

6.0 CVSS 3.1 Medium EPSS 0.55% · top 56.0% CWE-122 · Heap-based buffer overflow
6.0CVSS 3.1 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
7References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2024-3447 Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58813 ExploitIssue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2274123 Issue TrackingThird Party Advisory
https://patchew.org/QEMU/[email protected]/ Broken Link
https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html
https://security.netapp.com/advisory/ntap-20250425-0005/ Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-577017.html

Track CVE-2024-3447 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-3447), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.