Linux Kernel up to 7.0.12 KVM FIELD_PREP permission

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k1.25-

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 7.0.12. Affected is the function FIELD_PREP of the component KVM. The manipulation leads to permission. This vulnerability is uniquely identified as CVE-2026-53200. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.0.12 and classified as critical. This issue affects the function FIELD_PREP of the component KVM. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2026-53200 since 06/09/2026. The exploitation is known to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/25/2026). MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 7.0.13 eliminates this vulnerability. Applying the patch b95976c2ea446044553a5f469c0bae13553d75ab/49b32ddb87a3a109afecea89e55d70f73956b8bc is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 7.0.13
Patch: b95976c2ea446044553a5f469c0bae13553d75ab/49b32ddb87a3a109afecea89e55d70f73956b8bc

Timelineinfo

06/09/2026 CVE reserved
06/25/2026 +16 days Advisory disclosed
06/25/2026 +0 days VulDB entry created
06/25/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-53200 (🔒)
GCVE (CVE): GCVE-0-2026-53200
GCVE (VulDB): GCVE-100-373757

Entryinfo

Created: 06/25/2026 12:13
Changes: 06/25/2026 12:13 (59)
Complete: 🔍
Cache ID: 216::103

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