What is CVE-2022-32234?

CVE-2022-32234 is a critical-severity vulnerability in Facebook Hermes, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-10-11.

How severe is CVE-2022-32234?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Facebook Hermes

CVE-2022-32234

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 th…

Vulnerability class: Buffer Overflow

EPSS: 0.009 (55.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Facebook Hermes — versions unspecified

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve-assign@fb.com (Patch, Third Party Advisory)
cve-assign@fb.com (Vendor Advisory)

Frequently asked questions

What is CVE-2022-32234?: CVE-2022-32234 is a critical-severity vulnerability in Facebook Hermes, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-10-11.
How severe is CVE-2022-32234?: Critical severity. CVSS v3 base score is 9.8 out of 10.