What is CVE-2022-35289?

CVE-2022-35289 is a critical-severity vulnerability in Facebook Hermes, classified under Integer Overflow to Buffer Overflow. CVSS score: 9.8/10. Published 2022-10-11.

How severe is CVE-2022-35289?

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

Integer overflow in Facebook Hermes

CVE-2022-35289

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 exploitabl…

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

References

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

Frequently asked questions

What is CVE-2022-35289?: CVE-2022-35289 is a critical-severity vulnerability in Facebook Hermes, classified under Integer Overflow to Buffer Overflow. CVSS score: 9.8/10. Published 2022-10-11.
How severe is CVE-2022-35289?: Critical severity. CVSS v3 base score is 9.8 out of 10.