Medium 5.5Published May 28, 2026

CVE-2026-46131KVM: x86: check for nEPT/nNPT in slow flush hypercalls

Updated under an hour ago (Oct 27, 2026, 2:50 PM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Undergoing Analysis
Record last updated: Jun 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from aee738236dca0d0870789138ec494e15d6303566 before 971f17f5d91045404e3914029ea57c3da90179a4; from aee738236dca0d0870789138ec494e15d6303566 before 45fc766bc756ff1d66f8ca026a9c4f7f764adfae; from aee738236dca0d0870789138ec494e15d6303566 before d6f4e217d663ede5becc2fd6cb612c749677387b; from aee738236dca0d0870789138ec494e15d6303566 before 4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57; from aee738236dca0d0870789138ec494e15d6303566 before 464af6fc2b1dcc74005b7f58ee3812b17777efee	CNA record
linux linux_kernel linux:linux_kernel	from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7; 7.1; 7.1	NVD

References

References

https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4	patch
https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfae	patch
https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387b	patch
https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57	patch
https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efee	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.