CVE-2026-42488

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CVSS 3.1

8.1 high

EPSS

<1%p29

Published

Jun 18, 2026 (Jun 18, 2026)

Modified

Jun 22, 2026

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.

Weakness: CWE-119
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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