CVE-2020-1914
CRITICALFacebook Hermes < 2020-10-01 - Out-of-Bounds Access
Title source: ruleDescription
A logic vulnerability when handling the SaveGeneratorLong instruction in Facebook Hermes prior to commit b2021df620824627f5a8c96615edbd1eb7fdddfc allows attackers to potentially read out of bounds or theoretically 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.
Scores
CVSS v3
9.8
EPSS
0.0085
EPSS Percentile
74.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-670
Status
published
Products (2)
facebook/hermes
< 2020-10-01
npm/hermes-engine
0 - 0.7.2npm
Published
Oct 08, 2020
Tracked Since
Feb 18, 2026