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    CVE-2026-20586

    In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.

    Published:Oct 5, 2026
    Last Modified:Oct 8, 2026
    EPS:Oct 5, 2026
    EPSS Score:0.00382
    CVSS Score:8.8

    Affected Products

    Vendor
    Mediatek
    Product
    Mt2718
    Vendor
    Mediatek
    Product
    Mt2718 Firmware
    Vendor
    Mediatek
    Product
    Mt6768
    Vendor
    Mediatek
    Product
    Mt6768 Firmware
    Vendor
    Mediatek
    Product
    Mt6769
    Vendor
    Mediatek
    Product
    Mt6769 Firmware
    Vendor
    Mediatek
    Product
    Mt6789
    Vendor
    Mediatek
    Product
    Mt6789 Firmware
    Vendor
    Mediatek
    Product
    Mt6833
    Vendor
    Mediatek
    Product
    Mt6833 Firmware
    Vendor
    Mediatek
    Product
    Mt6855
    Vendor
    Mediatek
    Product
    Mt6855 Firmware
    Vendor
    Mediatek
    Product
    Mt6877
    Vendor
    Mediatek
    Product
    Mt6877 Firmware
    Vendor
    Mediatek
    Product
    Mt8186
    Vendor
    Mediatek
    Product
    Mt8186 Firmware
    Vendor
    Mediatek
    Product
    Mt8188
    Vendor
    Mediatek
    Product
    Mt8188 Firmware
    Vendor
    Mediatek
    Product
    Mt8189
    Vendor
    Mediatek
    Product
    Mt8189 Firmware
    Vendor
    Mediatek
    Product
    Mt8195
    Vendor
    Mediatek
    Product
    Mt8195 Firmware
    Vendor
    Mediatek
    Product
    Mt8196
    Vendor
    Mediatek
    Product
    Mt8196 Firmware
    Vendor
    Mediatek
    Product
    Mt8367
    Vendor
    Mediatek
    Product
    Mt8367 Firmware
    Vendor
    Mediatek
    Product
    Mt8391
    Vendor
    Mediatek
    Product
    Mt8391 Firmware
    Vendor
    Mediatek
    Product
    Mt8395
    Vendor
    Mediatek
    Product
    Mt8395 Firmware
    Vendor
    Mediatek
    Product
    Mt8668
    Vendor
    Mediatek
    Product
    Mt8668 Firmware
    Vendor
    Mediatek
    Product
    Mt8676
    Vendor
    Mediatek
    Product
    Mt8676 Firmware
    Vendor
    Mediatek
    Product
    Mt8678
    Vendor
    Mediatek
    Product
    Mt8678 Firmware
    Vendor
    Mediatek
    Product
    Mt8696
    Vendor
    Mediatek
    Product
    Mt8696 Firmware
    Vendor
    Mediatek
    Product
    Mt8781
    Vendor
    Mediatek
    Product
    Mt8781 Firmware
    Vendor
    Mediatek
    Product
    Mt8788e
    Vendor
    Mediatek
    Product
    Mt8788e Firmware
    Vendor
    Mediatek
    Product
    Mt8792
    Vendor
    Mediatek
    Product
    Mt8792 Firmware
    Vendor
    Mediatek
    Product
    Mt8793
    Vendor
    Mediatek
    Product
    Mt8793 Firmware
    Vendor
    Mediatek
    Product
    Mt8799
    Vendor
    Mediatek
    Product
    Mt8799 Firmware
    Vendor
    Mediatek
    Product
    Mt8910
    Vendor
    Mediatek
    Product
    Mt8910 Firmware
    Vendor
    Mediatek, Inc.
    Product
    Mediatek Chipset

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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