CVE-2026-58755

Received Received - Intake

ARM SMMUv3 Privilege Escalation via Logic Error

Publication date: 2026-09-15

Last updated on: 2026-09-18

Assigner: Google Devices

Description

In smmu_install_nested_ste of arm-smmu-v3.c, there is a possible escalation of privilege due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-18

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-05

NVD

CVE-2026-58755

EUVD

EUVD-2026-79018

Affected Vendors & Products

Vendor	Product	Version / Range
google	android	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

Executive Summary

This vulnerability is a logic error in the smmu_install_nested_ste function of arm-smmu-v3.c that could allow an attacker to escalate privileges. Exploitation requires system execution privileges and does not need user interaction.

Impact Analysis

If exploited, this vulnerability could allow an attacker with system privileges to gain further control over the system, potentially leading to unauthorized access or data manipulation.

Compliance Impact

This vulnerability allows local privilege escalation with system execution privileges, which could lead to unauthorized access or data breaches. Such breaches may violate compliance requirements under GDPR or HIPAA if sensitive data is exposed or mishandled due to the exploit.

Mitigation Strategies

Apply vendor patches or updates for the arm-smmu-v3.c component. Monitor official security advisories for patches. Restrict access to systems with System execution privileges until mitigation is applied.

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