CVE-2025-58148

highpriority · track · 0EPSS 0.004 · 32 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.38% (32nd) EPSS

CVSS 7.5 · high

Is it mine?

19 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Some Viridian hypercalls can specify a mask of vCPU IDs as an input, in one of three formats. Xen has boundary checking bugs with all three formats, which can cause out-of-bounds reads and writes while processing the inputs. * CVE-2025-58147. Hypercalls using the HV_VP_SET Sparse format can cause vpmask_set() to write out of bounds when converting the bitmap to Xen's format. * CVE-2025-58148. Hypercalls using any input format can cause send_ipi() to read d->vcpu[] out-of-bounds, and operate on a wild vCPU pointer.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedxen-0:4.18.5_08-150600.3.34.2.aarch64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Module for Server Applications 15 SP6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Server 15 SP6-LTSSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-0:4.18.5_08-150600.3.34.2.x86_64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-devel-0:4.18.5_08-150600.3.34.2.aarch64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-devel-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Module for Server Applications 15 SP6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-devel-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Server 15 SP6-LTSSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-devel-0:4.18.5_08-150600.3.34.2.x86_64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-doc-html-0:4.18.5_08-150600.3.34.2.aarch64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-doc-html-0:4.18.5_08-150600.3.34.2.x86_64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-libs-0:4.18.5_08-150600.3.34.2.aarch64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-libs-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Module for Basesystem 15 SP6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-libs-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Server 15 SP6-LTSSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-libs-0:4.18.5_08-150600.3.34.2.x86_64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-libs-32bit-0:4.18.5_08-150600.3.34.2.x86_64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-0:4.18.5_08-150600.3.34.2.aarch64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Module for Server Applications 15 SP6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Server 15 SP6-LTSSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-0:4.18.5_08-150600.3.34.2.x86_64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-domU-0:4.18.5_08-150600.3.34.2.aarch64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-domU-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Module for Basesystem 15 SP6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-domU-0:4.18.5_08-150600.3.34.2.x86_64 as component of SUSE Linux Enterprise Server 15 SP6-LTSSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-domU-0:4.18.5_08-150600.3.34.2.x86_64 as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-xendomains-wait-disk-0:4.18.5_08-150600.3.34.2.noarch as component of SUSE Linux Enterprise Module for Server Applications 15 SP6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-xendomains-wait-disk-0:4.18.5_08-150600.3.34.2.noarch as component of SUSE Linux Enterprise Server 15 SP6-LTSSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Fixedxen-tools-xendomains-wait-disk-0:4.18.5_08-150600.3.34.2.noarch as component of openSUSE Leap 15.6suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

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 · 6.8–7.5

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

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondaryexploitability 3.9 · impact 3.6

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

v3.16.8mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Hsecondary · SUSE Product Security

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USCWE-125USCWE-787US

affected products (19)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell NetWorker vProxy <19.14all versionscert_bundDE
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Open Source Xen <xsa475-1.patchall versionscert_bundDE
Open Source Xen <xsa475-2.patchall versionscert_bundDE
Open Source Xen <xsa475-4.19-1.patchall versionscert_bundDE
Open Source Xen <xsa475-4.19-2.patchall versionscert_bundDE
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Dell Networker≤ vProxy <19.14cert_bundDE
Open Source Xen< xsa475-1.patchcert_bundDE
Open Source Xen< xsa475-2.patchcert_bundDE
Open Source Xen< xsa475-4.19-1.patchcert_bundDE
Open Source Xen< xsa475-4.19-2.patchcert_bundDE
The Linux Foundation Xen4.14.0 → 4.20.1fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.15fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 3.1fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
xen xen≥ 4.15.0nvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

SUSE-SU-2026:0012-1Security update for xen2026-01-05csaf · suse_csafDE
Security update for xen
WID-SEC-W-2025-2380Xen: Mehrere SchwachstellenDeutsch2025-10-21csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um seine Privilegien zu erhöhen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

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 suse_csaf NVD CVE.org MITRE

published 2025-10-31modified 2026-10-19

references (6)

External citations — patches, advisories, analysis.

https://vigilance.fr/vulnerability/Xen-buffer-overflow-via-Viridian-Hypercalls-48534 cnnvd
https://xenbits.xenproject.org/xsa/advisory-475.html cnnvd
https://xenbits.xenproject.org/xsa/advisory-475.html enisa_euvd
http://www.openwall.com/lists/oss-security/2025/10/21/1Mailing ListPatchThird Party Advisorynvd
http://xenbits.xen.org/xsa/advisory-475.htmlPatchVendor Advisorynvd
https://xenbits.xenproject.org/xsa/advisory-475.htmlPatchVendor Advisorynvd

scry

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