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    CVE-2026-9939

    Heap buffer overflow in WebCodecs in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

    Published:May 27, 2026
    Last Modified:May 29, 2026
    EPS:May 28, 2026
    EPSS Score:0.00031
    CVSS Score:8.8

    Affected Products

    Vendor
    Apple
    Product
    Macos
    Vendor
    Google
    Product
    Chrome
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Microsoft
    Product
    Windows

    Exploits

    No exploit reference

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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