What is CVE-2026-1220?

CVE-2026-1220 is a high-severity vulnerability in Apple Macos, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-06-10.

How severe is CVE-2026-1220?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Apple Macos

CVE-2026-1220

Race in V8 in Google Chrome prior to 144.0.7559.99 allowed a remote attacker to potentially exploit type confusion via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Race Condition

EPSS: 0.003 (21.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

chrome-cve-admin@google.com (Vendor Advisory)
chrome-cve-admin@google.com (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-1220?: CVE-2026-1220 is a high-severity vulnerability in Apple Macos, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2026-06-10.
How severe is CVE-2026-1220?: High severity. CVSS v3 base score is 7.5 out of 10.