CVE-2026-58718

Privilege Escalation via Improper Input Validation in SMMU Detach Function on Android

Published Sep 15, 2026 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
In smmu_detach_dev_nested of arm-smmu-v3.c, there is a possible escalation of privilege due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Privilege Escalation via Improper Input Validation in SMMU Detach Function on Android
Type Values Removed Values Added
CPEs cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Local Privilege Escalation via Improper Input Validation in smmu_detach_dev_nested
Type Values Removed Values Added
Title Local Privilege Escalation via Improper Input Validation in smmu_detach_dev_nested
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Google
Google android
Weaknesses CWE-20
Vendors & Products Google
Google android
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Description In smmu_detach_dev_nested of arm-smmu-v3.c, there is a possible escalation of privilege due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Google_Devices
Published
Updated
Sep 16, 2026, 3:57 AM
Reserved
Jul 2, 2026, 5:39 AM
Status
Analyzed
Published
Sep 15, 2026, 7:17 PM
Modified
Sep 18, 2026, 12:58 PM