CVE-2022-32234

9.8 criticalEPSS 1.2%

Critical (9.8) in facebook hermes. EPSS 1.2% chance of exploitation in the next 30 days.

An out of bounds write in hermes, while handling large arrays, prior to commit 06eaec767e376bfdb883d912cb15e987ddf2bda1 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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2022-10-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

facebook:hermes

References

https://github.com/facebook/hermes/commit/06eaec767e376bfdb883d912cb15e987ddf2bda1
https://www.facebook.com/security/advisories/CVE-2022-32234
https://github.com/facebook/hermes/commit/06eaec767e376bfdb883d912cb15e987ddf2bda1
https://www.facebook.com/security/advisories/CVE-2022-32234

Check your stack JSON