Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Local access and pre-existing System privilege (PR:H) required; no scope change; full C/I/A impact achievable via UAF-to-code-execution on success.
Primary rating from Vendor (MediaTek).
CVSS VectorVendor: MediaTek
Lifecycle Timeline
3DescriptionCVE.org
In Audio HAL, there is a possible escalation of privilege 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: ALPS11191981; Issue ID: MSV-9125.
AnalysisAI
Local privilege escalation in the MediaTek Audio Hardware Abstraction Layer (HAL) allows an attacker who has already obtained System-level privilege to further escalate to higher privileges via a use-after-free condition (CWE-416). The vulnerability affects over 65 MediaTek chipset models spanning Android smartphones, tablets, IoT, and connected-device SoCs. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already possess System-level privilege on the target MediaTek device - this is a non-trivial prerequisite in the Android security model, typically requiring a prior exploit chain. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 score of 6.7 with vector AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H accurately captures the constrained exploitability: the attacker must already hold System-level privilege on the target device, limiting the initial entry bar significantly. … 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 the MediaTek-provided patch ALPS11191981 as distributed through the September 2026 MediaTek Product Security Bulletin (https://www.mediatek.com/product-security-bulletin/September-2026). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-72200
GHSA-jp9f-f36c-fh7v