Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.2, < 6.6.140 |
References
- https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfaePatch
- https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efeePatch
- https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57Patch
- https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4Patch
- https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387bPatch
FAQ
What is CVE-2026-46131?
CVE-2026-46131 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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() i...
How severe is CVE-2026-46131?
CVE-2026-46131 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46131?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.