Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
System privilege prerequisite confirms PR:H; local-only driver access confirms AV:L; no availability impact stated in description justifies A:N.
Primary rating from Vendor (MediaTek).
CVSS VectorVendor: MediaTek
Lifecycle Timeline
3DescriptionCVE.org
In apusys, there is a possible escalation of privilege due to a missing bounds check. 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: AUTO00837766; Issue ID: MSV-6767.
AnalysisAI
Privilege escalation in MediaTek's AI Processing Unit Subsystem (apusys) driver allows a local attacker already holding System-level privileges on devices equipped with MT8366, MT8196, or MT8195 chipsets to escalate further, achieving high-impact access to confidential data and system integrity. The root cause is a missing bounds check (CWE-749) in an exposed driver function, patched under MediaTek ID AUTO00837766 in the August 2026 security bulletin. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the attacker has already obtained Android System privilege - a highly restricted privilege tier above standard application or even privileged user access, typically held only by core Android system services and vendor-signed platform applications. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 6.0 (Medium) accurately reflects the substantial prerequisite of existing System-level privilege (PR:H), which materially constrains the real-world 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 patch identified by MediaTek as AUTO00837766 (Issue MSV-6767), available via the August 2026 MediaTek Product Security Bulletin at https://www.mediatek.com/product-security-bulletin/August-2026. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-749 – Exposed Dangerous Method or Function
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-52057
GHSA-629p-7h2h-8hf5