Is CVE-2024-31143 actively exploited?

CVE-2024-31143 has no public evidence of in-the-wild exploitation as of 2026-01-14.

What is the CVSS score for CVE-2024-31143?

CVE-2024-31143 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2024-31143?

Patch guidance is available from xen security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2024-31143.

Fix CVE-2024-31143 - HIGH xen xen

Description

An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen all in one go. In this handling an error path could be taken in different situations, with or without a particular lock held. This error path wrongly releases the lock even when it is not currently held.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-832

Metadata

Primary Vendor: XEN
Published: 7/18/2024
Last Modified: 1/14/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2024-31143

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary