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High severity8.8NVD Advisory· Published Jun 25, 2026· Updated Jul 6, 2026

CVE-2026-53200

CVE-2026-53200

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 products

9
  • Linux/Kernel8 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.19,<7.0.13
    • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
    • (no CPE)
  • osv-coords
    pkg:linux/kernel
    Range: >= 6.19.0, < 7.0.13

Patches

Vulnerability mechanics

References

2

News mentions

0

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CVE-2026-53200 · High · VYPR