7.5

CVE-2026-42493

x86 shadow paging is deprecated

Addressing certain issues, in particular related to operations which may
take excessively long and therefore would need preemption, has turned out
overly costly.  Since alternatives (HVM/PVH: HAP, PV: shim) are commonly
available, the decision was to deprecate the functionality, while still
retaining it for people to use at their own (security) risk.  Memory-wise
small enough guests may still be okay to run.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerXen
≫
Produkt Xen
Default Statusunknown
Version consult Xen advisory XSA-495
Status unknown
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.47% 0.384
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

https://xenbits.xenproject.org/xsa/advisory-495.html
http://xenbits.xen.org/xsa/advisory-495.html
http://www.openwall.com/lists/oss-security/2026/07/28/12