CVE-2022-26357

mediumpriority · track · 28EPSS 0.003 · 17 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (17th) EPSS

CVSS 6.2 · medium

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.

cvss

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

7.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.2–7

v2.06.2mediumAV:L/AC:H/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 1.9 · impact 10

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1 · impact 5.9

v3.16.4mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USprimary

affected products (10)

Products and version ranges known to be affected.

Citrix Systems Hypervisor 8.2all versionscert_bundDEcpe:/o:citrix:hypervisor:citrix_hypervisor_8.2_ltsr
Citrix Systems XenServer 7.1all versionscert_bundDEcpe:/a:citrix:xenserver:7.1
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
debian debian linux= 11.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 34nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 35nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
xen xen4.11.0 → 4.12.0nvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
xen xen4.13.0 → 4.16.0nvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0453XEN / Citrix Hypervisor: Mehrere SchwachstellenDeutsch2022-04-05csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Citrix Systems Hypervisor, Citrix Systems XenServer und Xen ausnutzen, um seine Privilegien zu erhöhen, Informationen offenzulegen oder einen Denial of Service Zustand herbeizuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2022-04-05modified 2026-06-17

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+4135 more

references (26)

External citations — patches, advisories, analysis.

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