CVE-2026-20511

Published Sep 7, 2026 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
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.

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 SurfaceFlinger Use‑After‑Free Memory Corruption on MediaTek Chipsets
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'}

Type Values Removed Values Added
First Time appeared Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Vendors & Products Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Type Values Removed Values Added
Title SurfaceFlinger Use‑After‑Free Memory Corruption on MediaTek Chipsets
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
Weaknesses

Sources

Status
PUBLISHED
Assigner
MediaTek
Published
Updated
Sep 8, 2026, 3:55 AM
Reserved
Nov 3, 2025, 1:30 AM
Status
Deferred
Published
Sep 7, 2026, 2:17 AM
Modified
Sep 8, 2026, 6:38 PM