CVE-2026-20473: CWE-416 Use After Free in MediaTek, Inc. MediaTek chipset
In display, 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: ALPS11019722; Issue ID: MSV-7759.
AI Analysis
Technical Summary
This vulnerability (CWE-416) involves a use-after-free condition in the display functionality of MediaTek chipsets. The flaw allows memory corruption that could enable a local attacker with existing system privileges to escalate their privileges further. The issue does not require user interaction to exploit. The affected chipsets include MT6991, MT6993, MT8126, MT8171, MT8188, MT8189, MT8367, MT8668, MT8676, MT8678, MT8766, MT8768, MT8781, MT8786, MT8799, and MT8910. The CVSS v3.1 base score is 6.0, indicating a medium severity level. No patch or official remediation guidance has been published as of the information provided.
Potential Impact
Successful exploitation could lead to local escalation of privilege on affected MediaTek chipsets, allowing an attacker with system privileges to gain higher privileges. There is no indication of remote exploitation or denial of service impact. The vulnerability requires the attacker to already have system-level access, limiting the scope of impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or remediation level is provided, users and administrators should monitor MediaTek advisories for updates. No specific mitigations are indicated in the available data.
CVE-2026-20473: CWE-416 Use After Free in MediaTek, Inc. MediaTek chipset
Description
In display, 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: ALPS11019722; Issue ID: MSV-7759.
CVSS v3.1
Score 6.0medium
Affected software
MediaTek, Inc.
MediaTek chipset
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-416) involves a use-after-free condition in the display functionality of MediaTek chipsets. The flaw allows memory corruption that could enable a local attacker with existing system privileges to escalate their privileges further. The issue does not require user interaction to exploit. The affected chipsets include MT6991, MT6993, MT8126, MT8171, MT8188, MT8189, MT8367, MT8668, MT8676, MT8678, MT8766, MT8768, MT8781, MT8786, MT8799, and MT8910. The CVSS v3.1 base score is 6.0, indicating a medium severity level. No patch or official remediation guidance has been published as of the information provided.
Potential Impact
Successful exploitation could lead to local escalation of privilege on affected MediaTek chipsets, allowing an attacker with system privileges to gain higher privileges. There is no indication of remote exploitation or denial of service impact. The vulnerability requires the attacker to already have system-level access, limiting the scope of impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or remediation level is provided, users and administrators should monitor MediaTek advisories for updates. No specific mitigations are indicated in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.016Z
- State
- PUBLISHED
Threat ID: 6a700181bf32cb7a34d5c9f7
Added to database: 08/03/2026, 02:48:33 UTC
Last enriched: 08/10/2026, 14:36:32 UTC
Last updated: 09/10/2026, 19:55:46 UTC
Views: 27
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