What is CVE-2022-0798?

CVE-2022-0798 is a high-severity vulnerability in Apple macOS, classified under Use After Free. CVSS score: 8.8/10. Published 2022-04-05.

How severe is CVE-2022-0798?

High severity. CVSS v3 base score is 8.8 out of 10.

Use After Free in Apple macOS

CVE-2022-0798

Use after free in MediaStream in Google Chrome prior to 99.0.4844.51 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension.

Vulnerability class: Use-After-Free

Published 2022-04-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% 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

Weakness classification (CWE)

CWE-416 — Use After Free

References

chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
crbug.com/1283402 (Permissions Required, Issue Tracking, Vendor Advisory)
security.gentoo.org/glsa/202208-25 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2022-0798?: CVE-2022-0798 is a high-severity vulnerability in Apple macOS, classified under Use After Free. CVSS score: 8.8/10. Published 2022-04-05.
How severe is CVE-2022-0798?: High severity. CVSS v3 base score is 8.8 out of 10.