CVE-2024-31143

7.5 highEPSS 0.5%

High (7.5) in xen xen. EPSS 0.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
CWE: CWE-832
Published: 2024-07-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

xen:xen

References

https://xenbits.xenproject.org/xsa/advisory-458.html
http://www.openwall.com/lists/oss-security/2024/07/16/3
http://xenbits.xen.org/xsa/advisory-458.html
https://xenbits.xenproject.org/xsa/advisory-458.html

Check your stack JSON