VULNERABILITY INTELLIGENCE

CVE-2022-35289

CVSS score9.8 CRITICAL

EPSS probability1.20%

CISA KEVNot currently listed

Published2022-10-11

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

A write-what-where condition in hermes caused by an integer overflow, prior to commit 5b6255ae049fa4641791e47fad994e8e8c4da374 allows attackers to potentially 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.

Weakness classification

CWE-190: Integer Overflow or Wraparound
CWE-680: Integer Overflow to Buffer Overflow

Primary references

cve-assign@fb.com — Patch, Third Party Advisory
cve-assign@fb.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory