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hermes-engine

7 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • Critical 9.8
    CVE-2021-24044

    Access of Resource Using Incompatible Type in Hermes

    By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes would invoke generator functions and error out on invalid await/yield positions. This could result in segmentation fault as a…

    Facebook Hermes hermes-engine npm
  • Critical 9.8
    CVE-2021-24037

    Use After Free in Hermes

    A use after free in hermes, while emitting certain error messages, prior to commit d86e185e485b6330216dee8e854455c694e3a36e allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application us…

    Facebook Hermes hermes-engine npm
  • Critical 9.8
    CVE-2020-1914

    Always-Incorrect Control Flow Implementation in Facebook Hermes

    A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically execute arbitrary code via crafted JavaScript…

    Facebook Hermes hermes-engine npm
  • Critical 9.8
    CVE-2020-1911

    Access of Resource Using Incompatible Type in Facebook Hermes

    A type confusion vulnerability when resolving properties of JavaScript objects with specially-crafted prototype chains in Facebook Hermes prior to commit fe52854cdf6725c2eaa9e125995da76e6ceb27da allows attackers to potentially execute arbitrary code via craft…

    Facebook Hermes hermes-engine npm