EUVD-2026-72205
GHSA-q3j2-3v46-82qj
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
System-level privilege already required (PR:H) and local device access mandatory (AV:L); successful escalation compromises the full device stack, warranting C:H/I:H/A:H with no scope change.
Primary rating from Vendor (MediaTek).
CVSS VectorVendor: MediaTek
Lifecycle Timeline
5DescriptionCVE.org
In Audio HAL, there is a possible escalation of privilege due to improper input validation. 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: ALPS11087540; Issue ID: MSV-8246.
AnalysisAI
Local privilege escalation in MediaTek's Audio Hardware Abstraction Layer (HAL) on Android devices allows an attacker who already holds System-level privilege to further escalate access through improper input validation, achieving full confidentiality, integrity, and availability compromise of the affected device. The vulnerability spans 57 distinct MediaTek chipsets across the MT6xxx and MT8xxx families and is addressed in MediaTek's September 2026 security bulletin under Patch ID ALPS11087540 (Issue ID: MSV-8246). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already hold System-level privilege (Android UID 'system' or an equivalent process context) on the target Android device running one of the 57 affected MediaTek chipsets under vulnerable firmware prior to Patch ID ALPS11087540. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.7 (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) accurately reflects the pivotal constraint that an attacker must already hold System-level privilege before this vulnerability is reachable - substantially limiting realistic attack surface to post-compromise or chained-exploit scenarios rather than initial access. … 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 | Apply Patch ID ALPS11087540 (Issue ID: MSV-8246) by installing OEM-issued OTA firmware updates that incorporate MediaTek's September 2026 security bulletin, referenced at https://www.mediatek.com/product-security-bulletin/September-2026. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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