Incorrect Conversion between Numeric Types Affecting facebook/hermes package, versions [0,]


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.3% (70th percentile)

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  • Snyk IDSNYK-UNMANAGED-FACEBOOKHERMES-3042405
  • published11 Oct 2022
  • disclosed11 Oct 2022
  • creditUnknown

Introduced: 11 Oct 2022

CVE-2022-40138  (opens in a new tab)
CWE-681  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Incorrect Conversion between Numeric Types during bytecode conversion, which could trigger out-of-bounds writes and allow arbitrary code execution if Hermes is used to execute untrusted JavaScript.

CVSS Scores

version 3.1