MediaTek geniezone OOB Write Local Escalation (CVE-2026-20453)
CVE-2026-20453 Published on June 1, 2026
In geniezone, there is a possible out of bounds write 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: ALPS10886526; Issue ID: MSV-6791.
Vulnerability Analysis
CVE-2026-20453 can be exploited with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-20453 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-20453
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Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT6739 is affected.
- Version MT6761 is affected.
- Version MT6765 is affected.
- Version MT6768 is affected.
- Version MT6781 is affected.
- Version MT6789 is affected.
- Version MT6835 is affected.
- Version MT6853 is affected.
- Version MT6855 is affected.
- Version MT6877 is affected.
- Version MT6878 is affected.
- Version MT6879 is affected.
- Version MT6883 is affected.
- Version MT6885 is affected.
- Version MT6886 is affected.
- Version MT6889 is affected.
- Version MT6893 is affected.
- Version MT6895 is affected.
- Version MT6897 is affected.
- Version MT6899 is affected.
- Version MT6983 is affected.
- Version MT6985 is affected.
- Version MT6989 is affected.
- Version MT6991 is affected.
- Version MT8673 is affected.
- Version MT8765 is affected.
- Version MT8766 is affected.
- Version MT8768 is affected.
- Version MT8781 is affected.
- Version MT8786 is affected.
- Version MT8788 is affected.
- Version MT8791T is affected.
- Version MT8793 is affected.
- Version MT8797 is affected.
- Version MT8798 is affected.
- Version MT8910 is affected.