Description
In multiple functions 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 no additional execution privileges needed. User interaction is not needed for exploitation.
Published: 2026-09-15
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation
Action: Apply Update
AI Analysis

Impact

A logic error in several functions of the arm-smmu-v3.c kernel module allows a local attacker to elevate privileges without needing additional execution rights. The flaw does not require user interaction, making it possible for any locally running code, such as a malicious application, to trigger the privilege escalation path. This weakness‑693).

Affected Systems

Android devices that contain the ARM SMMU v3 implementation, primarily Google Pixel devices following the 2026‑09‑01 security patch. All such devices are susceptible until the kernel patch is applied.

Risk and Exploitability

The CVSS score of 7.8 indicates high severity, and the lack of user interaction means any application with local code execution can exploit the flaw. The EPSS score is less than 1%, and the vulnerability is not listed in CISA KEV. The ability to gain local privilege without additional execution privileges implies that a malicious app or user‑level process can elevate its rights to kernel level, potentially leading to broader system compromise. Prompt patching is recommended due to the high severity and the wide occurrence of affected devices.

Generated by OpenCVE AI on September 20, 2026 at 13:06 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the Android 14 security patch dated 2026‑09‑01 (or later) that contains the kernel fix for the arm‑smmu‑v3 logic error.
  • Configure devices to receive and install OTA updates automatically or enforce a policy that requires manual verification of the latest security patch level.
  • Restrict installation of applications from unknown sources and minimize system‑level permissions granted to third‑party apps.

Generated by OpenCVE AI on September 20, 2026 at 13:06 UTC.

Tracking

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Advisories

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History

Sun, 20 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Title ARM SMMU v3 Privilege Escalation in Android Kernels

Fri, 18 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

Thu, 17 Sep 2026 08:15:00 +0000

Type Values Removed Values Added
Title ARM SMMU v3 Privilege Escalation in Android Kernels

Tue, 15 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google android
Vendors & Products Google
Google android

Tue, 15 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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


Tue, 15 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
Description In multiple functions 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 no additional execution privileges needed. User interaction is not needed for exploitation.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Google_Devices

Published:

Updated: 2026-09-16T03:57:08.737Z

Reserved: 2026-07-02T05:46:59.932Z

Link: CVE-2026-58766

cve-icon Vulnrichment

Updated: 2026-09-15T19:29:59.030Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-15T19:17:33.927

Modified: 2026-09-18T13:00:58.033

Link: CVE-2026-58766

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-20T13:15:14Z

Weaknesses
  • CWE-693

    Protection Mechanism Failure