CVE-2026-20536: CWE-416 Use After Free in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20536 is a use-after-free vulnerability in the aidl component of MediaTek chipsets. This memory corruption flaw can lead to local privilege escalation if the attacker already has System privileges. Exploitation does not require user interaction. Multiple MediaTek chipset models are affected. A patch is referenced by Patch ID ALPS11242428 but no explicit patch availability status is provided.
Affected software
MediaTek, Inc.
MediaTek chipset
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the aidl component of MediaTek chipsets, identified as CWE-416. The flaw allows memory corruption that could enable a local attacker with existing System privileges to escalate their privileges further. The vulnerability affects specific MediaTek chipset models including MT6878, MT6881, MT6899, MT6989, MT6991, MT6993, MT8188, MT8189, MT8668, MT8695, MT8696, MT8781, and MT8910. Exploitation does not require user interaction. The vendor has assigned Patch ID ALPS11242428 to address this issue, but no direct confirmation of patch availability or vendor advisory content is provided.
Potential Impact
The vulnerability could allow a local attacker who already has System privileges to escalate their privileges further through memory corruption caused by use-after-free. This could compromise system integrity or security on affected MediaTek chipsets. No information about remote exploitation or user interaction is required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance referencing Patch ID ALPS11242428. Until a patch is confirmed, limit local access to trusted users with System privileges to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.036Z
- State
- PUBLISHED
Threat ID: 6ac309152cdf04f656a0bfa3
Added to database: 10/05/2026, 02:19:01 UTC
Last enriched: 10/05/2026, 02:34:08 UTC
Last updated: 10/05/2026, 02:34:08 UTC
Views: 6
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