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    CVE-2026-19508

    Heap-based buffer overflow in the multipart form-data parser in `jst_post.c` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote unauthenticated attacker to cause memory corruption and denial of service, and potentially execute arbitrary code, via a crafted multipart/form-data request.

    Published:Aug 19, 2026
    Last Modified:Aug 27, 2026
    EPS:Aug 19, 2026
    EPSS Score:0.00309
    CVSS Score:9.8

    Affected Products

    Vendor
    Rdk
    Product
    Rdk-b Webui

    Exploits

    No exploit reference

    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