CVE-2021-24045

2021-12-1320:30:11

CWE-843

facebook

www.cve.org

type confusion

facebook hermes

vulnerability

AI Score

9.5

Confidence

High

EPSS

0.002

Percentile

65.1%

JSON

A type confusion vulnerability could be triggered when resolving the “typeof” unary operator in Facebook Hermes prior to v0.10.0. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

CNA Affected

[
  {
    "product": "Hermes",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "0.10.0",
        "versionType": "custom"
      },
      {
        "lessThan": "0.10.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]