CVE-2022-33749

mediumpriority · track · 21EPSS 0.011 · 67 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.15% (67th) EPSS

CVSS 5.3 · 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

XAPI open file limit DoS It is possible for an unauthenticated client on the network to cause XAPI to hit its file-descriptor limit. This causes XAPI to be unable to accept new requests for other (trusted) clients, and blocks XAPI from carrying out any tasks that require the opening of file descriptors.

cvss

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

5.3

010

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

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USprimary

affected products (10)

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:-
xen xapiall versionsnvdUScpe:2.3:o:xen:xapi:*:*:*:*:*:*:*:*

advisories (2)

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.
WID-SEC-W-2022-1939Xen: Mehrere SchwachstellenDeutsch2022-11-01csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Xen und Citrix Systems Hypervisor ausnutzen um einen Denial of Service zu verursachen, Informationen offenzulegen oder seine Rechte zu erweitern.

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

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+3263 more

references (14)

External citations — patches, advisories, analysis.

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