CVE-2026-20513: CWE-35 Path Traversal: '.../...//' in MediaTek, Inc. MediaTek chipset
Description
In Audio HAL, there is a possible information disclosure due to improper input validation. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11087533; Issue ID: MSV-8245.
CVSS v3.1
Score 4.4medium
Affected software
MediaTek, Inc.
MediaTek chipset
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-35 Path Traversal) exists in the Audio HAL of MediaTek chipsets, where improper input validation allows a malicious actor with System privileges to disclose local information. The flaw is due to path traversal sequences ('.../...//') that are not properly sanitized. The issue affects a wide range of MediaTek chipset models explicitly listed. There is no indication of remote exploitation or user interaction needed. No official remediation level or patch has been provided in the available data.
Potential Impact
An attacker with System privileges on a device using an affected MediaTek chipset could exploit this vulnerability to disclose local information improperly protected by the Audio HAL. This could aid further attacks or information gathering but requires prior elevated privileges. There is no evidence of remote exploitation or broader impact beyond local information disclosure.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official remediation level or patch links are provided, users should monitor MediaTek advisories for updates. No specific mitigation steps are indicated in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.030Z
- State
- PUBLISHED
Threat ID: 6a9e1c75acd9273b49c51dcf
Added to database: 09/07/2026, 02:07:49 UTC
Last enriched: 09/07/2026, 08:25:10 UTC
Last updated: 10/21/2026, 13:20:20 UTC
Views: 132
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