CVE-2024-31142

Name: CVE-2024-31142
Creator: NVD / NIST
Published: 2024-05-16T14:15:08.903+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 17.44%

Last modified Jun 17, 2026

CVE-2024-31142 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Because of a logical error in XSA-407 (Branch Type Confusion), the mitigation is not applied properly when it is intended to be used. XSA-434 (Speculative Return Stack Overflow) uses the same infrastructure, so is equally impacted. For more details, see: https://xenbits.xen.org/xsa/advisory-407.html https://xenbits.xen.org/xsa/advisory-434.html . EPSS estimates a 17.44% chance of exploitation in the next 30 days.

Description

Because of a logical error in XSA-407 (Branch Type Confusion), the mitigation is not applied properly when it is intended to be used. XSA-434 (Speculative Return Stack Overflow) uses the same infrastructure, so is equally impacted. For more details, see: https://xenbits.xen.org/xsa/advisory-407.html https://xenbits.xen.org/xsa/advisory-434.html

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

17.44%

96.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-693

Affected Software

Vendor	Product	Versions
Xen	Xen	< 4.15.6
Xen	Xen	>= 4.16.0, < 4.16.6
Xen	Xen	>= 4.17.0, < 4.17.4
Xen	Xen	>= 4.18.0, < 4.18.2
Fedoraproject	Fedora	38
Fedoraproject	Fedora	40

References

https://xenbits.xenproject.org/xsa/advisory-455.htmlPatch, Vendor Advisory
http://xenbits.xen.org/xsa/advisory-455.htmlPatch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5OK6MH75S7YWD34EWW7QIZTS627RIE3/Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RYAZ7P6YFJ2E3FHKAGIKHWS46KYMMTZH/Mailing List, Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-455.htmlPatch, Vendor Advisory

Timeline

Published: May 16, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-31142?

How severe is CVE-2024-31142?

CVE-2024-31142 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 17.44% probability of exploitation in the next 30 days.

How do I fix CVE-2024-31142?

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-2024-31142?

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

Scan your code now

Source: NVD / NIST