# CVE-2026-53200: linux: In the Linux kernel, the following vulnerability has been resolved:  KVM: arm64: nv: Fix handling of XN[0] when !FEAT...

CVE-2026-53200 is fixed in linux on 1 platform by DEBIAN-CVE-2026-53200 (version 7.0.13-1), released June 28, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-53200
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 25, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.0.13-1 | [DEBIAN-CVE-2026-53200](https://patchblox.com/security/data/fix/linux/debian-cve-2026-53200.md) | Jun 28, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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