Out-of-bounds Read in Apple macOS
CVE-2026-8546
Out of bounds read in GPU in Google Chrome on Mac and Windows prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Apple macOS
- Google Chrome — versions 148.0.7778.168
- Linux Kernel
- Microsoft Windows
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html (Product, Vendor Advisory)
- issues.chromium.org/issues/497531791 (Permissions Required)
Frequently asked questions
- What is CVE-2026-8546?
- CVE-2026-8546 is a medium-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2026-05-14.
- How severe is CVE-2026-8546?
- Medium severity. CVSS v3 base score is 5.3 out of 10.