Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Local vector with System privilege required (PR:H); once achieved, exploitation is straightforward (AC:L) yielding full impact.
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-9126.
AnalysisAI
Privilege escalation via use-after-free in MediaTek's Android Audio Hardware Abstraction Layer (Audio HAL) affects over 65 distinct chipset families spanning mobile, tablet, and IoT SoCs. An attacker who has already obtained System-level privilege on a device running an affected MediaTek chipset can trigger the UAF condition to escalate further - gaining full control over confidentiality, integrity, and availability without any user interaction. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the attacker has already obtained System-level privilege on the target device - this is not an initial-access vector and cannot be exercised from an unprivileged application context. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 6.7 correctly reflects the PR:H prerequisite - an attacker must already possess System privilege before this vulnerability is reachable, which substantially reduces the autonomous attack surface. … 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-supplied patch ALPS11191981, referenced in the September 2026 MediaTek Product Security Bulletin at 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-2026-72199
GHSA-8xrw-cc98-j52m