What is CVE-2022-42818?

CVE-2022-42818 is a medium-severity vulnerability in Apple macOS, classified under Information Disclosure. CVSS score: 5.9/10. Published 2022-11-01.

How severe is CVE-2022-42818?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Information disclosure in Apple macOS

CVE-2022-42818

This issue was addressed with improved data protection. This issue is fixed in macOS Ventura 13. A user in a privileged network position may be able to track user activity.

Vulnerability class: Information Disclosure

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

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.7th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Apple macOS — versions unspecified

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

support.apple.com/kb/HT213444 (Vendor Advisory)
support.apple.com/en-us/HT213488 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-42818?: CVE-2022-42818 is a medium-severity vulnerability in Apple macOS, classified under Information Disclosure. CVSS score: 5.9/10. Published 2022-11-01.
How severe is CVE-2022-42818?: Medium severity. CVSS v3 base score is 5.9 out of 10.