CVE-2026-46131

Medium

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: check for nEPT/nNPT in slow flush hypercalls Checking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa() is only valid if an L2 guest is running *with nested EPT/NPT enabled*. Instead use the same condition as translate_nested_gpa() itself.

SeverityMedium
CVSS5.5
Exploit probability—
ProductLinux Kernel
PublishedMay 28, 2026
First seenMay 28, 2026

How to fix

Update
  • linux linux_kernel6.6.140, 6.12.88, 6.18.30, 7.0.7 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel6.2 ≤ v < 6.6.140, 6.7 ≤ v < 6.12.88, 6.13 ≤ v < 6.18.30, 6.19 ≤ v < 7.0.7, 7.16.6.140, 6.12.88, 6.18.30, 7.0.7

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CVE-2026-46131 · Linux Kernel · Dark Radar