What is CVE-2022-32863?

CVE-2022-32863 is a critical-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-09-20.

How severe is CVE-2022-32863?

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

Buffer overflow in Apple macOS

CVE-2022-32863

A memory corruption issue was addressed with improved state management. This issue is fixed in Safari 15.6, macOS Monterey 12.5. Processing maliciously crafted web content may lead to arbitrary code execution.

Vulnerability class: Buffer Overflow

Published 2022-09-20 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.012 (66.0th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.012 · change: +0.002

Affected products

Apple macOS — versions unspecified
Apple Safari

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

support.apple.com/kb/HT213346
support.apple.com/en-us/HT213345 (Release Notes, Vendor Advisory)
support.apple.com/en-us/HT213341 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2022-32863?: CVE-2022-32863 is a critical-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-09-20.
How severe is CVE-2022-32863?: Critical severity. CVSS v3 base score is 9.8 out of 10.