What is CVE-2025-43403?

CVE-2025-43403 is a medium-severity vulnerability in Apple Macos, classified under Improper Authorization. CVSS score: 5.5/10. Published 2026-02-11.

How severe is CVE-2025-43403?

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

Auth bypass in Apple Macos

CVE-2025-43403

An authorization issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26. An app may be able to access sensitive user data.

EPSS: 0.002 (6.8th 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:H/I:N/A:N.

Affected products

Apple Macos — versions 0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

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

Frequently asked questions

What is CVE-2025-43403?: CVE-2025-43403 is a medium-severity vulnerability in Apple Macos, classified under Improper Authorization. CVSS score: 5.5/10. Published 2026-02-11.
How severe is CVE-2025-43403?: Medium severity. CVSS v3 base score is 5.5 out of 10.