What is CVE-2022-42809?

CVE-2022-42809 is a high-severity vulnerability in Apple macOS, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2022-11-01.

How severe is CVE-2022-42809?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Apple macOS

CVE-2022-42809

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13. Processing a maliciously crafted gcx file may lead to unexpected app termination or arbitrary code execution.

Vulnerability class: Buffer Overflow

Published 2022-11-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (27.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Apple macOS — versions unspecified

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

support.apple.com/en-us/HT213488 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2022-42809?: CVE-2022-42809 is a high-severity vulnerability in Apple macOS, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2022-11-01.
How severe is CVE-2022-42809?: High severity. CVSS v3 base score is 7.8 out of 10.