MediaTek Modem Local Priv Escalation via Missing Permission Check
CVE-2026-20599 Published on November 2, 2026
In Modem, there is a possible escalation of privilege due to a missing permission 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: MOLY01790985; Issue ID: MSV-8148.
Weakness Type
Improper Handling of Insufficient Permissions or Privileges
The application does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the application in an invalid state.
Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT2716 is affected.
- Version MT2735 is affected.
- Version MT2737 is affected.
- Version MT6739 is affected.
- Version MT6761 is affected.
- Version MT6762 is affected.
- Version MT6763 is affected.
- Version MT6765 is affected.
- Version MT6767 is affected.
- Version MT6768 is affected.
- Version MT6769 is affected.
- Version MT6771 is affected.
- Version MT6779 is affected.
- Version MT6781 is affected.
- Version MT6783 is affected.
- Version MT6785 is affected.
- Version MT6789 is affected.
- Version MT6813 is affected.
- Version MT6815 is affected.
- Version MT6833 is affected.
- Version MT6835 is affected.
- Version MT6853 is affected.
- Version MT6855 is affected.
- Version MT6858 is affected.
- Version MT6873 is affected.
- Version MT6875 is affected.
- Version MT6877 is affected.
- Version MT6878 is affected.
- Version MT6879 is affected.
- Version MT6880 is affected.
- Version MT6881 is affected.
- Version MT6883 is affected.
- Version MT6885 is affected.
- Version MT6886 is affected.
- Version MT6889 is affected.
- Version MT6890 is affected.
- Version MT6891 is affected.
- Version MT6893 is affected.
- Version MT6895 is affected.
- Version MT6896 is affected.
- Version MT6897 is affected.
- Version MT6899 is affected.
- Version MT6980 is affected.
- Version MT6982 is affected.
- Version MT6983 is affected.
- Version MT6985 is affected.
- Version MT6986 is affected.
- Version MT6988 is affected.
- Version MT6989 is affected.
- Version MT6990 is affected.
- Version MT6991 is affected.
- Version MT6993 is affected.
- Version MT8668 is affected.
- Version MT8676 is affected.
- Version MT8678 is affected.
- Version MT8755 is affected.
- Version MT8765 is affected.
- Version MT8766 is affected.
- Version MT8766R is affected.
- Version MT8768 is affected.
- Version MT8771 is affected.
- Version MT8775 is affected.
- Version MT8781 is affected.
- Version MT8786 is affected.
- Version MT8788E is affected.
- Version MT8791 is affected.
- Version MT8791T is affected.
- Version MT8792 is affected.
- Version MT8793 is affected.
- Version MT8796 is affected.
- Version MT8797 is affected.
- Version MT8798 is affected.
- Version MT8863 is affected.
- Version MT8873 is affected.
- Version MT8875 is affected.
- Version MT8883 is affected.
- Version MT8893 is affected.