CVE-2026-53359: KVM: x86: Fix shadow paging use-after-free due to unexpected role

Published Jul 4, 2026
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

Other sources

KVM: x86: Fix shadow paging use-after-free due to unexpected role

Microsoft

Affected Software

8 affected componentsFixes available
Linux Linux kernel=
Linux Linux kernel>=2.6.36<6.1.177
Linux Linux kernel>=6.2<6.6.144
Linux Linux kernel>=6.7<6.12.95
Linux Linux kernel>=6.13<6.18.38
Linux Linux kernel>=6.19<7.1.3
debian/linux<=5.10.223-1, <=5.10.262-1, <=6.1.176-1, <=6.12.94-1
6.1.180-16.12.101-17.1.8-27.1.9-1
debian/linux-6.1
6.1.180-1~deb11u1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.180-1Fixed in 6.12.101-1Fixed in 7.1.8-2Fixed in 7.1.9-1
  2. Upgrade

    Upgrade debian/linux-6.1 to a version that resolves this vulnerability.

    Fixed in 6.1.180-1~deb11u1
  3. Upgrade

    Upgrade Linux kernel KVM/x86 shadow paging UAF to a version that resolves this vulnerability.

    Patch 0cb2af2ea66ad

Event History

Jul 4, 2026
CVE Published
via MITRE·11:51 AM
Data Sourced
via MITRE·11:51 AM
DescriptionSeverity
Data Sourced
via NVD·12:17 PM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via Red Hat·01:01 PM
DescriptionSeverityAffected Software
Jul 5, 2026
Data Sourced
via Microsoft·08:03 AM
DescriptionSeverityWeakness
Aug 13, 2026
Data Sourced
via Launchpad·08:40 PM
Description
Aug 19, 2026
Data Sourced
via Ubuntu·08:42 PM
RemedyDescriptionSeverityAffected Software
Aug 22, 2026
Data Sourced
via Debian·08:47 PM
DescriptionAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-53359?

CVE-2026-53359 has a risk rating of 52.

2

How does CVE-2026-53359 affect the Linux kernel?

CVE-2026-53359 can lead to a use-after-free condition during shadow paging in the Linux kernel.

3

What software is impacted by CVE-2026-53359?

CVE-2026-53359 impacts the Linux kernel utilized within Microsoft Windows Server.

4

How do I mitigate CVE-2026-53359?

To mitigate CVE-2026-53359, ensure that your system is updated with the latest Linux kernel patches.

5

What kind of vulnerability is CVE-2026-53359 categorized as?

CVE-2026-53359 is categorized as a Use After Free vulnerability.

Contact

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