Description
In multiple functions of arm-smmu-v3.c, there is a possible use-after-free 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.
Published: 2026-09-15
Score: 6.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation via Use-After-Free
Action: Immediate Patch
AI Analysis

Impact

The vulnerability arises from a logic error in the arm-smmu-v3.c driver, creating a use‑after‑free condition. Exploitation of this flaw can grant a local attacker elevated privileges, allowing the execution of system‑level code. The weakness is a classic use‑after‑free flaw (CWE‑416). There is no requirement for user interaction; once the device is compromised, the attacker can leverage the flaw to gain higher authority.

Affected Systems

The flaw is present in Google's Android operating system on devicesv3 driver. Specific Android releases prior to the security bulletin dated 2026‑09‑01 are affected. Precise version numbers are not listed in the advisory, so all installations of Android using that driver before the update are at risk.

Risk and Exploitability

The CVSS score of 6.7 indicates moderate impact, and the vulnerability is not listed in CISA’s KEV a malicious application or privileged user could trigger the use‑after‑free, leading to privilege escalation without additional user interaction. The exploit requires the attacker to have some local presence on the device.

Generated by OpenCVE AI on September 16, 2026 at 00:46 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest Android security update released in the 2026‑09‑01 bulletin that addresses the arm‑smmu‑v3 flaw.
  • While awaiting the update, restrict execution of untrusted privileged applications and avoid rooting the device.
  • Enforce device-wide application sandboxing and block system‑level permissions for regular apps.

Generated by OpenCVE AI on September 16, 2026 at 00:46 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 16 Sep 2026 01:15:00 +0000

Type Values Removed Values Added
Title Local Privilege Escalation via Use-After-Free in Android SMMU

Tue, 15 Sep 2026 22:30:00 +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-416
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'}

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 use-after-free 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Google_Devices

Published:

Updated: 2026-09-16T03:57:13.460Z

Reserved: 2026-07-02T05:43:30.494Z

Link: CVE-2026-58751

cve-icon Vulnrichment

Updated: 2026-09-15T19:41:54.182Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-15T19:17:33.630

Modified: 2026-09-16T19:24:44.153

Link: CVE-2026-58751

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-16T01:00:14Z

Weaknesses