CVE-2026-20480: CWE-122 Heap-based Buffer Overflow in MediaTek, Inc. MediaTek chipset
CVE-2026-20480 is a heap-based buffer overflow vulnerability in the Audio HAL component of MediaTek chipsets. The flaw allows an out-of-bounds write that could lead to a local denial of service. Exploitation requires user execution privileges but does not require user interaction. The issue affects specific MediaTek chipset models including MT2735, MT2737, MT6880, MT6890, MT6988, and MT6990. Patches have been identified by MediaTek under internal IDs but no public patch status is confirmed in this data.
AI Analysis
Technical Summary
This vulnerability (CWE-122) involves a heap buffer overflow in the Audio HAL of certain MediaTek chipsets, enabling an out-of-bounds write. The flaw can cause a local denial of service when exploited by a user with execution privileges. Exploitation does not require user interaction. MediaTek has assigned patch IDs ALPS10960023 and AUTO00851189 for affected chipset models, but no explicit public patch or remediation level is stated in the available data.
Potential Impact
Successful exploitation can cause a local denial of service on affected MediaTek chipsets. The attacker must have user execution privileges, but no user interaction is needed. There is no indication of remote exploitation or privilege escalation beyond user level from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. MediaTek has internal patch IDs related to this vulnerability, so monitoring official MediaTek advisories for updates and applying any released patches is recommended.
CVE-2026-20480: CWE-122 Heap-based Buffer Overflow in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20480 is a heap-based buffer overflow vulnerability in the Audio HAL component of MediaTek chipsets. The flaw allows an out-of-bounds write that could lead to a local denial of service. Exploitation requires user execution privileges but does not require user interaction. The issue affects specific MediaTek chipset models including MT2735, MT2737, MT6880, MT6890, MT6988, and MT6990. Patches have been identified by MediaTek under internal IDs but no public patch status is confirmed in this data.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-122) involves a heap buffer overflow in the Audio HAL of certain MediaTek chipsets, enabling an out-of-bounds write. The flaw can cause a local denial of service when exploited by a user with execution privileges. Exploitation does not require user interaction. MediaTek has assigned patch IDs ALPS10960023 and AUTO00851189 for affected chipset models, but no explicit public patch or remediation level is stated in the available data.
Potential Impact
Successful exploitation can cause a local denial of service on affected MediaTek chipsets. The attacker must have user execution privileges, but no user interaction is needed. There is no indication of remote exploitation or privilege escalation beyond user level from the provided information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. MediaTek has internal patch IDs related to this vulnerability, so monitoring official MediaTek advisories for updates and applying any released patches is recommended.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.021Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a700183bf32cb7a34d5caa6
Added to database: 08/03/2026, 02:48:35 UTC
Last enriched: 08/03/2026, 03:22:54 UTC
Last updated: 08/03/2026, 03:22:54 UTC
Views: 2
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