CVE-2025-27466

criticalPriorität · verfolgen · 0EPSS 0.005 · 41. PerzentilDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.48% (41st) EPSS

CVSS 9.8 · critical

Is it mine?

12 products

Prüfe deine Angriffsfläche

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · bewertet 2026-10-26

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of guest memory pages in the viridian code: 1. A NULL pointer dereference in the updating of the reference TSC area. This is CVE-2025-27466. 2. A NULL pointer dereference by assuming the SIM page is mapped when a synthetic timer message has to be delivered. This is CVE-2025-58142. 3. A race in the mapping of the reference TSC page, where a guest can get Xen to free a page while still present in the guest physical to machine (p2m) page tables. This is CVE-2025-58143.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-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".
Behobenxen-libs-0:4.14.6_28-150300.3.94.1.x86_64 as component of SUSE Linux Enterprise Micro 5.2suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

9.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–critical · 6.5–9.8

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HsecondaryAusnutzbarkeit 3.9 · Auswirkung 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:Hsecondary · SUSE Product Security

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

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

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-395USCWE-476US

betroffene Produkte (12)

Betroffene Produkte und Versionsbereiche.

Debian Linuxalle Versionencert_bundDEcpe:/o:debian:debian_linux:-
Dell NetWorker vProxy <19.14alle Versionencert_bundDE
Fedora Linuxalle Versionencert_bundDEcpe:/o:fedoraproject:fedora:-
Open Source Xen Server 8.4alle Versionencert_bundDEcpe:/o:xen:xen:server_8.4
SUSE Linuxalle Versionencert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEalle Versionencert_bundDEcpe:/o:suse:opensuse:-
Dell Networker≤ vProxy <19.14cert_bundDE
The Linux Foundation Xen4.13.0 → 4.17.0fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 3.1fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.15fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
xen xen4.13.0 → 4.17.0nvdUScpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

SUSE-SU-2026:0012-1Security update for xen2026-01-05csaf · suse_csafDE
Security update for xen
SUSE-SU-2026:0303-1Security update for xen2026-01-27csaf · suse_csafDE
Security update for xen
WID-SEC-W-2025-2007Xen: Mehrere SchwachstellenDeutsch2025-09-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xen ausnutzenEin Angreifer kann mehrere Schwachstellen in Xen ausnutzen, um einen Denial-of-Service-Angriff durchzuführen, Informationen offenzulegen oder Berechtigungen zu erweitern.

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cert_bund nvd suse_csaf NVD CVE.org MITRE

veröffentlicht 2025-09-11geändert 2026-10-19

Referenzen (6)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan