What is CVE-2026-20701?

CVE-2026-20701 is a high-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 7.5/10. Published 2026-03-25.

How severe is CVE-2026-20701?

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

Vulnerability in Apple macOS

CVE-2026-20701

An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to connect to a network share without user consent.

EPSS: 0.004 (34.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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-2026-20701?: CVE-2026-20701 is a high-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 7.5/10. Published 2026-03-25.
How severe is CVE-2026-20701?: High severity. CVSS v3 base score is 7.5 out of 10.