What is CVE-2026-64708?

CVE-2026-64708 is a medium-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 5.5/10. Published 2026-07-27.

How severe is CVE-2026-64708?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apple macOS

CVE-2026-64708

A file quarantine bypass was addressed with additional checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may bypass Gatekeeper checks.

EPSS: 0.002 (8.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Apple Macos — versions 0

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-64708?: CVE-2026-64708 is a medium-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 5.5/10. Published 2026-07-27.
How severe is CVE-2026-64708?: Medium severity. CVSS v3 base score is 5.5 out of 10.