CVE-2026-63807: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level

Overview

Severity

High (CVSS 8.8)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-20

Last Updated

2026-08-14

EPSS Score

0.14% (percentile: 3.4%)

Affected Products (1)

Other

• 21474-17084

Revision History

• 2026-07-20: Information published.
• 2026-07-20: Information published.
• 2026-08-14: Information published.
• 2026-08-14: Information published.
• 2026-08-14: Information published.
• 2026-08-14: Information published.
• 2026-08-14: Information published.
• 2026-08-14: Information published.