CVE-2025-36920
Received Received - Intake

Out-of-Bounds Write in ARM64 KVM hyp_alloc Enables Privilege Escalation

Publication date: 2026-03-10

Last updated on: 2026-03-11

Assigner: Google Devices

Description
In hyp_alloc of arch/arm64/kvm/hyp/nvhe/alloc.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

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Meta Information

Published
2026-03-10
Last Modified
2026-03-11
Generated
2026-07-06
AI Q&A
2026-03-10
EPSS Evaluated
2026-07-05
NVD
CVE-2025-36920
EUVD
EUVD-2025-208532

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google android *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the hyp_alloc function within the ARM64 KVM hypervisor code, specifically in the file arch/arm64/kvm/hyp/nvhe/alloc.c. It is caused by improper input validation that can lead to an out of bounds write.

An out of bounds write means that the program writes data outside the boundaries of allocated memory, which can corrupt memory and lead to unexpected behavior.

Exploitation of this vulnerability can result in local escalation of privilege without requiring any additional execution privileges or user interaction.

Impact Analysis

This vulnerability can allow an attacker with local access to escalate their privileges on the affected system.

Because no additional execution privileges or user interaction are needed, an attacker who can run code locally could exploit this flaw to gain higher privileges, potentially leading to full control over the system.

Compliance Impact

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