CVE-2021-24037 is a vulnerability in Facebook Hermes
Published on June 15, 2021
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 using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2021-24037 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2021-24037
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Affected Versions
Facebook Hermes Version commit prior to d86e185e485b6330216dee8e854455c694e3a36e is affected by CVE-2021-24037Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.