What is CVE-2026-3542?

CVE-2026-3542 is a high-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-03-04.

How severe is CVE-2026-3542?

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

Vulnerability in Apple macOS

CVE-2026-3542

Inappropriate implementation in WebAssembly in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

EPSS: 0.003 (22.9th percentile) — read the EPSS interpretation.

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.

Affected products

Apple Macos
Google Chrome — versions 145.0.7632.159
Linux Linux_kernel
Microsoft Windows

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

chrome-cve-admin@google.com (Release Notes, Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2026-3542?: CVE-2026-3542 is a high-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-03-04.
How severe is CVE-2026-3542?: High severity. CVSS v3 base score is 8.8 out of 10.