CVE-2024-31145

highpriority · track · 0EPSS 0.002 · 13 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.23% (13th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. In the logic establishing these mappings, error handling was flawed, resulting in such mappings to potentially remain in place when they should have been removed again. Respective guests would then gain access to memory regions which they aren't supposed to have access to.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondaryexploitability 0.8 · impact 6

v3.16.9mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USCWE-400US

affected products (12)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Open Source Xen <4.16.xall versionscert_bundDE
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Open Source Xen< 4.16.xcert_bundDE
Fedora Project Fedora≤ 40fstec_bduRU
The Linux Foundation Xen4.0 → 4.18.3fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.14fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 12fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
xen xen≥ 4.0.0nvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1861Xen: Mehrere SchwachstellenDeutsch2024-08-14csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um seine Privilegien zu erhöhen, einen Denial-of-Service-Zustand zu erzeugen und vertrauliche Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2024-09-25modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

https://cxsecurity.com/cveshow/CVE-2024-31145/cnnvd
https://vigilance.fr/vulnerability/Xen-memory-corruption-via-X86-IOMMU-Identity-Mapping-44942 cnnvd
https://xenbits.xenproject.org/xsa/advisory-460.html cnnvd
https://xenbits.xenproject.org/xsa/advisory-460.html enisa_euvd
http://www.openwall.com/lists/oss-security/2024/08/14/2Mailing ListThird Party Advisorynvd
http://xenbits.xen.org/xsa/advisory-460.htmlPatchVendor Advisorynvd
https://xenbits.xenproject.org/xsa/advisory-460.htmlPatchVendor Advisorynvd

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