https://seclists.org/oss-sec/2026/q3/300: Xen Security Advisory 495 v2 (CVE-2026-42493) - x86 shadow paging is depcated

Published Jul 28, 2026
·
Updated

Affected Software

1 affected component
Xen Project Xen Hypervisor>=4.7<=4.22.0
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Frequently Asked Questions

1

What is the severity of CVE-2026-42493?

CVE-2026-42493 is classified as a medium severity vulnerability.

2

How do I fix CVE-2026-42493?

To fix CVE-2026-42493, update to the latest version of the Xen Project Xen Hypervisor that addresses this advisory.

3

What does CVE-2026-42493 affect?

CVE-2026-42493 affects the x86 shadow paging feature in the Xen Project Xen Hypervisor.

4

When was CVE-2026-42493 published?

CVE-2026-42493 was published on July 28, 2026.

5

What changes were made in version 2 of the CVE-2026-42493 advisory?

Version 2 of the CVE-2026-42493 advisory updated the patch for staging and included further CI adjustments.

Company

Resources

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