CVE-2022-42309

highpriority · track · 35EPSS 0.003 · 22 %ileDERUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.29% (22nd) EPSS

CVSS 8.8 · high

Is it mine?

22 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Xenstore: Guests can crash xenstored Due to a bug in the fix of XSA-115 a malicious guest can cause xenstored to use a wrong pointer during node creation in an error path, resulting in a crash of xenstored or a memory corruption in xenstored causing further damage. Entering the error path can be controlled by the guest e.g. by exceeding the quota value of maximum nodes per domain.

cvss

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

8.8

010

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

v3.18.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2 · impact 6

v3.18.8highAV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-763USprimaryCWE-763US

affected products (22)

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 4.15.xall versionscert_bundDEcpe:/o:xen:xen:4.15.x
Open Source Xen 4.16.xall versionscert_bundDEcpe:/o:xen:xen:4.16.x
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Fedora Project Fedora≤ 37fstec_bduRU
Fedora Project Fedora≤ 36fstec_bduRU
Fedora Project Fedora≤ 35fstec_bduRU
Oracle Corp. Oracle Exadata≤ 21.2.23.0.0 (Patch 35130088)fstec_bduRU
Oracle Corp. Oracle Exadata≤ 21.2.23.0.0 (Patch 35277269)fstec_bduRU
Oracle Corp. Oracle VM Server for x86≤ 3fstec_bduRU
The Linux Foundation Xenall versionsfstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.8fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
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:*:*:*:*:*:*:*:*

showing 20 of 22

advisories (1)

Vendor and ecosystem advisories describing this.

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 (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 2022-11-01modified 2026-06-17

related (171)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2013-4695US	high7.8	5.28% (93rd)	Exploit	2019-12-27
Winamp 5.63: Invalid Pointer Dereference leading to Arbitrary Code Execution
CVE-2022-23222US	high7.8	1.92% (80th)	Exploit	2022-01-14
kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arithmetic via certain *_OR_NULL pointer type…
CVE-2021-41073US	high7.8	1.77% (78th)	Exploit	2021-09-19
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer,…
CVE-2026-31787US	high7.8	0.18% (8th)	Exploit	2026-04-30
In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: fix double free via VMA splitting privcmd_vm_ops defines .close (privcmd_close), but neither .may…
CVE-2023-34312US	high7.8	0.60% (48th)	Exploit	2023-06-01
In Tencent QQ through 9.7.8.29039 and TIM through 3.4.7.22084, QQProtect.exe and QQProtectEngine.dll do not validate pointers from inter-process communication, which leads to a wri…

+166 more

references (32)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan