🛡️ CVE-2022-40138
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-681 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-681
Public Exploit ✅ No
Source NVD
Published 2022-10-11
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
hermes 2022-09-27

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