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CVE-2023-1544

21
FAUCET Score

CVE-2023-1544 is a medium-severity vulnerability affecting QEMU's implementation of VMWare's paravirtual RDMA device, specifically impacting Fedora and QEMU products. A crafted guest driver can exploit this flaw by allocating an excessive number of page tables, leading to an out-of-bounds read and potential QEMU crash. The attack requires local access and user interaction, but has a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.2.0CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
22.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 28th percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 8.2.0-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 8.2.0-1
microsoftpatch availablevia msrc
Product: azl3 qemu 6.2.0-18 on Azure Linux 3.0Fixed in: 8.2.0-1
microsoftpatch availablevia msrc
Product: azl3 qemu 8.2.0-1 on Azure Linux 3.0Fixed in: 8.2.0-1
microsoftpatch availablevia msrc
Product: cbl2 qemu 6.2.0-22 on CBL Mariner 2.0Fixed in: 6.2.0-22
redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (3)

microsoft2024-Sep/CVE-2023-1544

CVE-2023-1544

Sep 10, 2024
microsoft2023-Mar/CVE-2023-1544Moderate

Qemu: pvrdma: out-of-bounds read in pvrdma_ring_next_elem_read()

Mar 14, 2023
redhatCVE-2023-1544Low

QEMU: pvrdma: out-of-bounds read in pvrdma_ring_next_elem_read()

Feb 27, 2023

References

lists.debian.org / debian-lts-announce/2025/04/msg00042.html
access.redhat.com / security/cve/CVE-2023-1544
bugzilla.redhat.com / show_bug.cgi
Issue TrackingMailing ListPatchVendor Advisory
lists.nongnu.org / archive/html/qemu-devel/2023-03/msg00206.html
Mailing ListPatchThird Party Advisory
security.netapp.com / advisory/ntap-20230511-0005