CVE-2026-80726: KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page

Overview

Severity

Medium (CVSS 4.7)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-04

EPSS Score

0.18% (percentile: 7.4%)

Affected Products (1)

Other

• 21684-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-04: Information published.