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

13 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
linux/kernel>=2.6.36<5.15.222
5.15.222
linux/kernel>=5.16.0<6.1.177
6.1.177
linux/kernel>=6.2.0<6.6.144
6.6.144
linux/kernel>=6.7.0<6.12.95
6.12.95
linux/kernel>=6.13.0<6.18.38
6.18.38
linux/kernel>=6.19.0<7.1.3
7.1.3
debian/linux<=6.1.176-1
6.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 5.15.222
  2. Upgrade

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

    Fixed in 6.1.177
  3. Upgrade

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

    Fixed in 6.6.144
  4. Upgrade

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

    Fixed in 6.12.95
  5. Upgrade

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

    Fixed in 6.18.38
  6. Upgrade

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

    Fixed in 7.1.3
  7. Upgrade

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

    Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.14-1
  8. Upgrade

    Upgrade to a fixed release 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 OSV·11:51 AM
DescriptionSeverityAffected Software
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

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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.

Company

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