CVE-2026-42488
High
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.
SeverityHigh
CVSS8.1
Exploit probability—
Product—
PublishedJun 18, 2026
First seenJun 18, 2026
Weakness typeCWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
Sources have not yet published the affected products and versions for this vulnerability.
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