CVE-2025-40266

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Check the untrusted offset in FF-A memory share Verify the offset to prevent OOB access in the hypervisor FF-A buffer in case an untrusted large enough value [U32_MAX - sizeof(struct ffa_composite_mem_region) + 1, U32_MAX] is set from the host kernel.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.5 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://git.kernel.org/stable/c/103e17aac09cdd358133f9e00998b75d6c1f1518
https://git.kernel.org/stable/c/bc1909ef38788f2ee3d8011d70bf029948433051
https://git.kernel.org/stable/c/f9f1aed6c8a3427900da3121e1868124854569c3
https://git.kernel.org/stable/c/fc3139d9f4c1fe1c7d5f25f99676bd8e9c6a1041

Configurations

No configuration.

History

30 Jul 2026, 06:24

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.2

04 Dec 2025, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-04 16:16

Updated : 2026-07-30 06:24

NVD link : CVE-2025-40266

Mitre link : CVE-2025-40266

CVE.ORG link : CVE-2025-40266

JSON object : View

Products Affected

No product.

CWE

No CWE.

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