CVE-2026-42488

Description

Some shadow paging errors paths will switch the page-tables without updating the currently running vCPU reference. This causes a mismatch between the loaded page-tables and the mapcache metadata which can lead to corruption of the mapcache.

References

https://xenbits.xenproject.org/xsa/advisory-494.html

http://xenbits.xen.org/xsa/advisory-494.html

http://www.openwall.com/lists/oss-security/2026/06/09/14

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS