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
Advisories
Source ID Title
Debian DSA Debian DSA DSA-5836-1 xen security update
Fixes

Solution

No solution given by the vendor.


Workaround

There are no mitigations.

History

Tue, 06 Jan 2026 04:15:00 +0900

Type Values Removed Values Added
First Time appeared Fedoraproject
Fedoraproject fedora
CPEs cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*
Vendors & Products Fedoraproject
Fedoraproject fedora

Wed, 05 Nov 2025 04:30:00 +0900

Type Values Removed Values Added
References

Wed, 05 Nov 2025 03:30:00 +0900


Fri, 28 Mar 2025 06:15:00 +0900

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: XEN

Published:

Updated: 2025-11-04T18:30:46.936Z

Reserved: 2024-03-28T18:14:12.892Z

Link: CVE-2024-31142

cve-icon Vulnrichment

Updated: 2025-11-04T17:20:03.755Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-16T14:15:08.903

Modified: 2026-01-05T19:00:27.637

Link: CVE-2024-31142

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-14T06:07:10Z

Weaknesses