What is CVE-2026-9122?

CVE-2026-9122 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-05-20.

How severe is CVE-2026-9122?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Apple macOS

CVE-2026-9122

Out of bounds read in GPU in Google Chrome on Mac prior to 148.0.7778.179 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Medium)

Vulnerability class: Buffer Overflow

Published 2026-05-20 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Apple macOS
Google Chrome — versions 148.0.7778.179

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193… (Vendor Advisory)
issues.chromium.org/issues/489579953 (Permissions Required)

Frequently asked questions

What is CVE-2026-9122?: CVE-2026-9122 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-05-20.
How severe is CVE-2026-9122?: Medium severity. CVSS v3 base score is 6.5 out of 10.