Vulnerability in Linux

CVE-2026-53200

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (1.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-53200: held from 0.002 to 0.001.

EPSS over last 30 days · oldest: 0.002 · newest: 0.001 · change: -0.000

Affected products

  • Linux — versions d93febe2ed2e0491af9d47f0ee6d4b01918877f4, 6.19, 0
  • Linux Kernel — versions 7.1

References

Frequently asked questions

What is CVE-2026-53200?
CVE-2026-53200 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-06-25.
How severe is CVE-2026-53200?
High severity. CVSS v3 base score is 8.8 out of 10.