What is CVE-2025-43393?

CVE-2025-43393 is a medium-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 5.2/10. Published 2025-12-12.

How severe is CVE-2025-43393?

Medium severity. CVSS v3 base score is 5.2 out of 10.

Vulnerability in Apple macOS

CVE-2025-43393

A permissions issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Tahoe 26.1. An app may be able to break out of its sandbox.

Published 2025-12-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (3.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

Apple macOS — versions 0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

support.apple.com/en-us/125634 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2025-43393?: CVE-2025-43393 is a medium-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 5.2/10. Published 2025-12-12.
How severe is CVE-2025-43393?: Medium severity. CVSS v3 base score is 5.2 out of 10.