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MediaTek Power HAL CVE-2026-20508

| EUVDEUVD-2026-72201 MEDIUM
Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)
2026-09-07 MediaTek GHSA-gw7m-ccvc-2982
6.7
CVSS 3.1 · Vendor: MediaTek
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Severity by source

Vendor (MediaTek) PRIMARY
6.7 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
6.7 MEDIUM

Local vector with high privilege required (System), low complexity once prerequisite met, full C/I/A impact, scope unchanged within device.

3.1 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (MediaTek).

CVSS VectorVendor: MediaTek

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Sep 07, 2026 - 11:28 vuln.today
CVE Published
Sep 07, 2026 - 01:57 cve.org
MEDIUM 6.7
CVE Published
Sep 07, 2026 - 01:57 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

In Power HAL, there is a possible escalation of privilege due to type confusion. 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: ALPS11165543; Issue ID: MSV-9012.

AnalysisAI

Privilege escalation in MediaTek's Power Hardware Abstraction Layer (Power HAL) allows an attacker who has already obtained System-level privilege on an Android device to further escalate to higher privilege through a type confusion vulnerability (CWE-843). The flaw spans a broad range of MediaTek chipsets - over 40 SoC variants - meaning it affects a wide swath of Android smartphones, tablets, and embedded devices. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
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Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires that the attacker has already obtained Android System privilege on a device powered by one of the 40+ affected MediaTek chipsets. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS vector (AV:L/AC:L/PR:H/UI:N) correctly captures the prerequisite that an attacker must already hold System privilege - a significant barrier that constrains real-world exploitability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation The patch for this vulnerability is identified by MediaTek Patch ID ALPS11165543 and Issue ID MSV-9012, disclosed in the MediaTek September 2026 Product Security Bulletin (https://www.mediatek.com/product-security-bulletin/September-2026). … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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Heap buffer overflow in the vdec (video decoder) kernel driver across 53+ MediaTek SoCs allows a local unprivileged atta

CVE-2026-20502 HIGH
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Local privilege escalation in MediaTek's vdec (video decoder) kernel driver affects more than 53 distinct chipset varian

CVE-2026-20465 HIGH
8.1 Aug 03

Heap-based buffer overflow in the MediaTek WLAN AP driver enables an adjacent-network attacker to escalate privileges wi

CVE-2026-20432 HIGH
8.0 Apr 07

Out-of-bounds write in MediaTek modem chipset implementations allows remote privilege escalation when user equipment con

CVE-2026-20452 HIGH
8.0 Jun 01

Heap buffer overflow in the MediaTek WLAN access point driver allows adjacent-network attackers with low-privilege user

CVE-2026-20495 HIGH
7.8 Aug 03

Local privilege escalation in MediaTek's Bluetooth driver affects six Wi-Fi/Bluetooth combo chipsets (MT7902, MT7920, MT

CVE-2026-20455 HIGH
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Local privilege escalation in MediaTek GenieZone (trusted execution environment) allows an attacker who has already gain

CVE-2026-20483 HIGH
7.7 Aug 03

Privilege escalation in MediaTek's Android Telephony component enables any locally-installed application - regardless of

CVE-2026-20479 HIGH
7.5 Aug 03

Out-of-bounds read in MediaTek modem firmware across 19 chipsets enables remote denial of service when a User Equipment

CVE-2026-20458 HIGH
7.5 Jul 01

Remote privilege escalation in the baseband modem firmware of dozens of MediaTek chipsets allows an attacker operating a

CVE-2026-20510 MEDIUM
6.7 Sep 07

Privilege escalation via a double-free memory corruption bug in camera middleware affects 17 MediaTek chipset variants,

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CVE-2026-20508 vulnerability details – vuln.today

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