CVE-2022-33748

mediumpriority · track · 22EPSS 0.003 · 19 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.27% (19th) EPSS

CVSS 5.6 · medium

Is it mine?

14 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

lock order inversion in transitive grant copy handling As part of XSA-226 a missing cleanup call was inserted on an error handling path. While doing so, locking requirements were not paid attention to. As a result two cooperating guests granting each other transitive grants can cause locks to be acquired nested within one another, but in respectively opposite order. With suitable timing between the involved grant copy operations this may result in the locking up of a CPU.

cvss

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

5.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.6mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 1.1 · impact 4

v3.15.1mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-755USprimary

affected products (14)

Products and version ranges known to be affected.

Citrix Systems Hypervisor 8.2 LTSR CU1all versionscert_bundDEcpe:/o:citrix:hypervisor:8.2_ltsr_cu1
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Xen 4.13.xall versionscert_bundDEcpe:/o:xen:xen:4.13.x
Open Source Xen 4.14.xall versionscert_bundDEcpe:/o:xen:xen:4.14.x
Open Source Xen 4.15.xall versionscert_bundDEcpe:/o:xen:xen:4.15.x
Open Source Xen 4.16.xall versionscert_bundDEcpe:/o:xen:xen:4.16.x
Open Source Xen xsa413all versionscert_bundDEcpe:/o:xen:xen:xsa413
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
debian debian linux= 11.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 35nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 36nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 37nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
xen xen≥ 4.0nvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1680Xen / Citrix Hypervisor: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2022-10-11csaf · cert_bundDE
Ein Angreifer aus dem angrenzenden Netzwerk kann mehrere Schwachstellen in Xen und Citrix Hypervisor ausnutzen, um einen Denial of Service Angriff durchzuführen.

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 2022-10-11modified 2026-06-17

related (705)

Related entries.

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+700 more

references (33)

External citations — patches, advisories, analysis.

scry

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