Design/Logic Flaw

2023-05-1822:15:00

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hermes

bytecode optimization bug

use-after-free

arbitrary code execution

untrusted javascript

react native

security issue

nvd

9.6 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

A bytecode optimization bug in Hermes prior to commit e6ed9c1a4b02dc219de1648f44cd808a56171b81 could be used to cause an use-after-free and obtain arbitrary code execution via a carefully crafted payload. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.