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CVE-2026-53200

KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX

HIGH
8.8
CVSS Score
Published: June 25, 2026 at 08:39 AM UTC
Updated: August 5, 2026 at 01:24 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX XN has already been extracted from its bitfield position so using FIELD_PREP() on the mask that clears XN[0] is completely broken, having the effect of unconditionally granting execute permissions... Fix the obvious mistake by manipulating the right bit.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.19 ≤ v < 7.0.136.19 ≤ v < 7.17.1 rc17.1 rc27.1 rc37.1 rc47.1 rc57.1 rc6d93febe2ed2e0491af9d47f0ee6d4b01918877f4
Vendor states this is fixed in 49b32ddb87a3a109afecea89e55d70f73956b8bc (fixed)
Vendor states this is fixed in b95976c2ea446044553a5f469c0bae13553d75ab (fixed)
Vendor states this is fixed in 6.19 (unaffected)
Vendor states this is fixed in 7.0.13 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: cverecord
https://git.kernel.org/stable/c/b95976c2ea446044553a5f469c0bae13553d75ab
Patch
Source: cverecord
https://git.kernel.org/stable/c/49b32ddb87a3a109afecea89e55d70f73956b8bc

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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