High severity · published Jun 25, 2026
CVE-2026-53200
KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX
8.8
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
6.19 before 7.0.13; 7.1; 7.1; 7.1; 7.1; 7.1; +1 more · source: NVD
LI
Linux · Linux
d93febe2ed2e0491af9d47f0ee6d4b01918877f4 before b95976c2ea446044553a5f469c0bae13553d75ab; d93febe2ed2e0491af9d47f0ee6d4b01918877f4 before 49b32ddb87a3a109afecea89e55d70f73956b8bc; 6.19 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53200
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53200
Patch
https://git.kernel.org/stable/c/49b32ddb87a3a109afecea89e55d70f73956b8bc
Patch
https://git.kernel.org/stable/c/b95976c2ea446044553a5f469c0bae13553d75ab
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