CVE-2020-1911

Source
https://nvd.nist.gov/vuln/detail/CVE-2020-1911
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-1911.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-1911
Aliases
Published
2020-09-04T03:15:09Z
Modified
2025-07-01T23:52:20.270738Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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 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.

References

Affected packages

Git / github.com/facebook/hermes

Affected ranges

Type
GIT
Repo
https://github.com/facebook/hermes
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

v0.*

v0.1.0
v0.1.1
v0.2.1
v0.3.0
v0.4.0
v0.5.0
v0.6.0