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    CVE-2020-1896

    A stack overflow vulnerability in Facebook Hermes 'builtin apply' prior to commit 86543ac47e59c522976b5632b8bf9a2a4583c7d2 (https://github.com/facebook/hermes/commit/86543ac47e59c522976b5632b8bf9a2a4583c7d2) allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

    Published:Feb 2, 2021
    Last Modified:Nov 21, 2024
    EPS:Feb 2, 2021
    EPSS Score:0.02546
    CVSS Score:9.8

    Affected Products

    Vendor
    Facebook
    Product
    Hermes

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2022-40138 (CVSS 9.8) — An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf700332…
    CVE-2022-35289 (CVSS 9.8) — A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47f…
    CVE-2022-32234 (CVSS 9.8) — An out of bounds write in hermes, while handling large arrays, prior to commit 06eaec767e376bfdb883d912cb15e98…

    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