What is CVE-2026-4453?

CVE-2026-4453 is a medium-severity vulnerability in Apple Macos, classified under CWE-472. CVSS score: 4.3/10. Published 2026-03-20.

How severe is CVE-2026-4453?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Integer overflow in Apple Macos

CVE-2026-4453

Integer overflow in Dawn in Google Chrome on Mac prior to 146.0.7680.153 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

EPSS: 0.002 (7.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Apple Macos
Google Chrome — versions 146.0.7680.153

Weakness classification (CWE)

CWE-472
CWE-190 — Integer Overflow or Wraparound

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-2026-4453?: CVE-2026-4453 is a medium-severity vulnerability in Apple Macos, classified under CWE-472. CVSS score: 4.3/10. Published 2026-03-20.
How severe is CVE-2026-4453?: Medium severity. CVSS v3 base score is 4.3 out of 10.