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Vulnerability record · CVE-2026-53200 · published 25 June 2026

CVE-2026-53200: Linux kernel vulnerability

Linux · Linux Kernel

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.

8.8 CVSS 3.1 High EPSS 0.12% · top 98.3%
8.8CVSS 3.1 base score
0.12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
6 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-53200), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.