Description
In SurfaceFlinger, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11123860; Issue ID: MSV-8890.
Published: 2026-09-07
Score: 6.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Local Privilege Escalation
Action: Immediate Patch
AI Analysis

Impact

MediaTek SurfaceFlinger contains a use‑after‑free memory corruption that may enable an attacker who already has System privilege to further compromise the system. The flaw is a classic CWE-416 condition that could allow corruption of critical heap objects.

Affected Systems

The vulnerability is reported for MediaTek, Inc. MediaTek chipsets. No specific firmware or software version ranges are disclosed in the CVE data.

Risk and Exploitability

The flaw requires local access with System privileges and does not require user interaction. An attacker who can exercise System privilege can exploit the use‑after‑free to elevate control, potentially taking full system control. The CVSS score is 6.7, indicating a moderate severity. No EPSS score is available, and the vulnerability is not listed in the CISA KEV catalog. The absence of an exploit probability metric suggests uncertainty about how often it has been leveraged, but the combination of local privilege and ability to corrupt memory makes the risk significant for environments where untrusted code can acquire System privileges.

Generated by OpenCVE AI on September 7, 2026 at 13:59 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the MediaTek patch ALPS11123860 to SurfaceFlinger
  • Restrict the assignment of System privilege to only required, trusted processes
  • Enforce strict SELinux or equivalent policies to limit access to SurfaceFlinger resources

Generated by OpenCVE AI on September 7, 2026 at 13:59 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Mon, 07 Sep 2026 14:15:00 +0000

Type Values Removed Values Added
Title SurfaceFlinger Use‑After‑Free Memory Corruption on MediaTek Chipsets

Mon, 07 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
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'}


Mon, 07 Sep 2026 05:00:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Vendors & Products Mediatek, Inc.
Mediatek, Inc. mediatek Chipset

Mon, 07 Sep 2026 04:45:00 +0000

Type Values Removed Values Added
Title SurfaceFlinger Use‑After‑Free Memory Corruption on MediaTek Chipsets

Mon, 07 Sep 2026 02:00:00 +0000

Type Values Removed Values Added
Description In SurfaceFlinger, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11123860; Issue ID: MSV-8890.
Weaknesses CWE-416
References

Subscriptions

Mediatek, Inc. Mediatek Chipset
cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published:

Updated: 2026-09-08T03:55:20.975Z

Reserved: 2025-11-03T01:30:59.030Z

Link: CVE-2026-20511

cve-icon Vulnrichment

Updated: 2026-09-07T10:28:32.720Z

cve-icon NVD

Status : Deferred

Published: 2026-09-07T02:17:19.810

Modified: 2026-09-08T18:38:19.590

Link: CVE-2026-20511

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-07T14:00:17Z

Weaknesses