CVEvulnerability

CVE-2020-1913

8.1 HIGH Published 2020-09-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-09-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-195, CWE-681

Description

An Integer signedness error in the JavaScript Interpreter in Facebook Hermes prior to commit 2c7af7ec481ceffd0d14ce2d7c045e475fd71dc6 allows attackers to cause a denial of service attack or a potential RCE 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.

Affected configurations

• facebook hermes (<= 0.4.3)

Related

Weakness · CWE (2)

  • CWE-195 Signed to Unsigned Conversion Error weakness
  • CWE-681 Incorrect Conversion between Numeric Types weakness

References