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CVE-2026-42488

x86: mismatched mapcache metadata PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Xen / Xenunknown consult Xen advisory XSA-494

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.