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    Dashboard / CVE / CVE-2026-20483

    CVE-2026-20483

    In Telephony, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11087526; Issue ID: MSV-8243.

    Published:Aug 3, 2026
    Last Modified:Aug 19, 2026
    EPS:Aug 3, 2026
    EPSS Score:0.00126
    CVSS Score:7.7

    Affected Products

    Vendor
    Mediatek
    Product
    Mt6739
    Vendor
    Mediatek
    Product
    Mt6739 Firmware
    Vendor
    Mediatek
    Product
    Mt6761
    Vendor
    Mediatek
    Product
    Mt6761 Firmware
    Vendor
    Mediatek
    Product
    Mt6765
    Vendor
    Mediatek
    Product
    Mt6765 Firmware
    Vendor
    Mediatek
    Product
    Mt6768
    Vendor
    Mediatek
    Product
    Mt6768 Firmware
    Vendor
    Mediatek
    Product
    Mt6781
    Vendor
    Mediatek
    Product
    Mt6781 Firmware
    Vendor
    Mediatek
    Product
    Mt6789
    Vendor
    Mediatek
    Product
    Mt6789 Firmware
    Vendor
    Mediatek
    Product
    Mt6833
    Vendor
    Mediatek
    Product
    Mt6833 Firmware
    Vendor
    Mediatek
    Product
    Mt6835
    Vendor
    Mediatek
    Product
    Mt6835 Firmware
    Vendor
    Mediatek
    Product
    Mt6853
    Vendor
    Mediatek
    Product
    Mt6853 Firmware
    Vendor
    Mediatek
    Product
    Mt6855
    Vendor
    Mediatek
    Product
    Mt6855 Firmware
    Vendor
    Mediatek
    Product
    Mt6877
    Vendor
    Mediatek
    Product
    Mt6877 Firmware
    Vendor
    Mediatek
    Product
    Mt6878
    Vendor
    Mediatek
    Product
    Mt6878 Firmware
    Vendor
    Mediatek
    Product
    Mt6879
    Vendor
    Mediatek
    Product
    Mt6879 Firmware
    Vendor
    Mediatek
    Product
    Mt6883
    Vendor
    Mediatek
    Product
    Mt6883 Firmware
    Vendor
    Mediatek
    Product
    Mt6885
    Vendor
    Mediatek
    Product
    Mt6885 Firmware
    Vendor
    Mediatek
    Product
    Mt6886
    Vendor
    Mediatek
    Product
    Mt6886 Firmware
    Vendor
    Mediatek
    Product
    Mt6889
    Vendor
    Mediatek
    Product
    Mt6889 Firmware
    Vendor
    Mediatek
    Product
    Mt6893
    Vendor
    Mediatek
    Product
    Mt6893 Firmware
    Vendor
    Mediatek
    Product
    Mt6895
    Vendor
    Mediatek
    Product
    Mt6895 Firmware
    Vendor
    Mediatek
    Product
    Mt6897
    Vendor
    Mediatek
    Product
    Mt6897 Firmware
    Vendor
    Mediatek
    Product
    Mt6983
    Vendor
    Mediatek
    Product
    Mt6983 Firmware
    Vendor
    Mediatek
    Product
    Mt6985
    Vendor
    Mediatek
    Product
    Mt6985 Firmware
    Vendor
    Mediatek
    Product
    Mt6989
    Vendor
    Mediatek
    Product
    Mt6989 Firmware
    Vendor
    Mediatek
    Product
    Mt6991
    Vendor
    Mediatek
    Product
    Mt6991 Firmware
    Vendor
    Mediatek
    Product
    Mt6993
    Vendor
    Mediatek
    Product
    Mt6993 Firmware
    Vendor
    Mediatek
    Product
    Mt8766
    Vendor
    Mediatek
    Product
    Mt8766 Firmware
    Vendor
    Mediatek
    Product
    Mt8766r
    Vendor
    Mediatek
    Product
    Mt8766r Firmware
    Vendor
    Mediatek
    Product
    Mt8768
    Vendor
    Mediatek
    Product
    Mt8768 Firmware
    Vendor
    Mediatek
    Product
    Mt8775
    Vendor
    Mediatek
    Product
    Mt8775 Firmware
    Vendor
    Mediatek
    Product
    Mt8781
    Vendor
    Mediatek
    Product
    Mt8781 Firmware
    Vendor
    Mediatek
    Product
    Mt8792
    Vendor
    Mediatek
    Product
    Mt8792 Firmware
    Vendor
    Mediatek
    Product
    Mt8796
    Vendor
    Mediatek
    Product
    Mt8796 Firmware
    Vendor
    Mediatek
    Product
    Mt8873
    Vendor
    Mediatek
    Product
    Mt8873 Firmware
    Vendor
    Mediatek
    Product
    Mt8883
    Vendor
    Mediatek
    Product
    Mt8883 Firmware
    Vendor
    Mediatek
    Product
    Mt8893
    Vendor
    Mediatek
    Product
    Mt8893 Firmware
    Vendor
    Mediatek, Inc.
    Product
    Mediatek Chipset

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High