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    CVE-2026-20479

    In Modem, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00741071; Issue ID: MSV-7620.

    Published:Aug 3, 2026
    Last Modified:Aug 19, 2026
    EPS:Aug 3, 2026
    EPSS Score:0.00497
    CVSS Score:7.5

    Affected Products

    Vendor
    Mediatek
    Product
    Mt2735
    Vendor
    Mediatek
    Product
    Mt2735 Firmware
    Vendor
    Mediatek
    Product
    Mt6833
    Vendor
    Mediatek
    Product
    Mt6833 Firmware
    Vendor
    Mediatek
    Product
    Mt6853
    Vendor
    Mediatek
    Product
    Mt6853 Firmware
    Vendor
    Mediatek
    Product
    Mt6855
    Vendor
    Mediatek
    Product
    Mt6855 Firmware
    Vendor
    Mediatek
    Product
    Mt6873
    Vendor
    Mediatek
    Product
    Mt6873 Firmware
    Vendor
    Mediatek
    Product
    Mt6875
    Vendor
    Mediatek
    Product
    Mt6875 Firmware
    Vendor
    Mediatek
    Product
    Mt6877
    Vendor
    Mediatek
    Product
    Mt6877 Firmware
    Vendor
    Mediatek
    Product
    Mt6880
    Vendor
    Mediatek
    Product
    Mt6880 Firmware
    Vendor
    Mediatek
    Product
    Mt6883
    Vendor
    Mediatek
    Product
    Mt6883 Firmware
    Vendor
    Mediatek
    Product
    Mt6885
    Vendor
    Mediatek
    Product
    Mt6885 Firmware
    Vendor
    Mediatek
    Product
    Mt6889
    Vendor
    Mediatek
    Product
    Mt6889 Firmware
    Vendor
    Mediatek
    Product
    Mt6890
    Vendor
    Mediatek
    Product
    Mt6890 Firmware
    Vendor
    Mediatek
    Product
    Mt6891
    Vendor
    Mediatek
    Product
    Mt6891 Firmware
    Vendor
    Mediatek
    Product
    Mt6893
    Vendor
    Mediatek
    Product
    Mt6893 Firmware
    Vendor
    Mediatek
    Product
    Mt8675
    Vendor
    Mediatek
    Product
    Mt8675 Firmware
    Vendor
    Mediatek
    Product
    Mt8771
    Vendor
    Mediatek
    Product
    Mt8771 Firmware
    Vendor
    Mediatek
    Product
    Mt8791
    Vendor
    Mediatek
    Product
    Mt8791 Firmware
    Vendor
    Mediatek
    Product
    Mt8791t
    Vendor
    Mediatek
    Product
    Mt8791t Firmware
    Vendor
    Mediatek
    Product
    Mt8797
    Vendor
    Mediatek
    Product
    Mt8797 Firmware
    Vendor
    Mediatek, Inc.
    Product
    Mediatek Chipset

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

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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