CVE-2022-40138

CRITICAL

Facebook Hermes < 2022-09-27 - Out-of-Bounds Access

Title source: rule
STIX 2.1

Description

An integer conversion error in Hermes bytecode generation, prior to commit 6aa825e480d48127b480b08d13adf70033237097, could have been used to perform Out-Of-Bounds operations and subsequently execute arbitrary code. Note that this is only exploitable in cases where Hermes is used to execute untrusted JavaScript. Hence, most React Native applications are not affected.

References (2)

Scores

CVSS v3 9.8
EPSS 0.0122
EPSS Percentile 79.1%
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-681
Status published
Products (1)
facebook/hermes < 2022-09-27
Published Oct 11, 2022
Tracked Since Feb 18, 2026