What is CVE-2026-20658?

CVE-2026-20658 is a high-severity vulnerability in Apple Macos. CVSS score: 7.8/10. Published 2026-02-11.

How severe is CVE-2026-20658?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Apple Macos

CVE-2026-20658

A package validation issue was addressed by blocking the vulnerable package. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.

EPSS: 0.001 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Macos — versions 0

References

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

Frequently asked questions

What is CVE-2026-20658?: CVE-2026-20658 is a high-severity vulnerability in Apple Macos. CVSS score: 7.8/10. Published 2026-02-11.
How severe is CVE-2026-20658?: High severity. CVSS v3 base score is 7.8 out of 10.