CVE-2023-1544

Name: CVE-2023-1544
Creator: NVD / NIST
Published: 2023-03-23T20:15:14.497+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.3/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2023-1544 is a medium-severity vulnerability rated 6.3/10 on the CVSS scale. A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.

Metrics

CVSS 3.1

6.3/10

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

EPSS Probability

0.31%

22.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 7.2.0
Fedoraproject	Fedora	37

References

https://access.redhat.com/security/cve/CVE-2023-1544
https://bugzilla.redhat.com/show_bug.cgi?id=2180364Issue Tracking, Mailing List, Patch, Vendor Advisory
https://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg00206.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230511-0005/
https://access.redhat.com/security/cve/CVE-2023-1544
https://bugzilla.redhat.com/show_bug.cgi?id=2180364Issue Tracking, Mailing List, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html
https://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg00206.htmlMailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20230511-0005/

Timeline

Published: Mar 23, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1544?

How severe is CVE-2023-1544?

CVE-2023-1544 has a CVSS score of 6.3/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1544?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1544?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST