Description
An out-of-bounds read in the JavaScript Interpreter in Facebook Hermes prior to commit 8cb935cd3b2321c46aa6b7ed8454d95c75a7fca0 allows attackers to cause a denial of service attack or possible further memory corruption 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 (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://www.facebook.com/security/advisories/cve-2020-1915
Patch, Third Party Advisory x_refsource_confirm
https://github.com/facebook/hermes/commit/8cb935cd3b2321c46aa6b7ed8454d95c75a7fca0
Scores
CVSS v3
7.5
EPSS
0.0112
EPSS Percentile
78.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (2)
facebook/hermes
< 2020-09-25
npm/hermes-engine
0 - 0.7.2npm
Published
Oct 26, 2020
Tracked Since
Feb 18, 2026