MediaTek GenieZone Privilege Escalation and Info Leaks

Out-of-bounds write in MediaTek's GenieZone hypervisor component enables local privilege escalation beyond System-level access on a wide range of MediaTek mobile chipsets. Exploitation is constrained to attackers who have already obtained System privileges, making this a secondary step in a multi-stage attack chain rather than an initial foothold technique. No public exploit code exists and EPSS of 0.13% (3rd percentile) confirms negligible real-world exploitation activity; no CISA KEV listing at time of analysis.

Privilege escalation in MediaTek's geniezone component affects ten specific chipset models (MT8792, MT8883, MT8873, MT8893, MT8768, MT8796, MT8799, MT6991, MT8791T, MT8910) due to a missing permission check classified under CWE-1287. An attacker who has already obtained System-level privileges on an affected device can exploit this flaw to escalate further - potentially reaching kernel or TEE-adjacent privilege boundaries - without requiring any user interaction. No public exploit code exists and no active exploitation has been confirmed (EPSS 0.13%, 3rd percentile), positioning this as a chaining vulnerability relevant to targeted attacks rather than opportunistic mass exploitation.

Out-of-bounds write in MediaTek's GeniZone Trusted Execution Environment (TEE) component enables local privilege escalation across 14 distinct MediaTek chipsets. An attacker who has already achieved System-level privilege on an affected Android device can exploit a missing bounds check to write outside intended memory boundaries within the secure enclave, gaining confidentiality and integrity access beyond what System privilege normally permits. No public exploit has been identified at time of analysis, and the EPSS score of 0.13% (3rd percentile) reflects low observed exploitation probability; however, the pre-existing System privilege prerequisite substantially narrows the realistic attack surface.

Out-of-bounds read in MediaTek's GeniZone trusted execution environment (TEE) exposes memory on 17 affected chipset models to local information disclosure, but only after an attacker has already acquired System-level privilege. The vulnerability stems from a missing bounds check in the geniezone driver (CWE-125, Patch ID ALPS11036877), and is tracked by MediaTek as MSV-7132. No public exploit code exists and CISA has not listed this in KEV; with an EPSS of 0.14% (4th percentile) and SSVC exploitation status of 'none', this is a low-urgency finding despite the breadth of affected silicon.