What is CVE-2026-39875?

CVE-2026-39875 is a high-severity vulnerability in Apple Macos, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2026-07-27.

How severe is CVE-2026-39875?

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

Is CVE-2026-39875 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Apple Macos

CVE-2026-39875

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A malicious app may be able to gain root privileges.

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

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

Public proof-of-concept exploits

mac-123456789-lab/CVE-2026-39875-macOS-CUPS-LPE

References

product-security@apple.com
product-security@apple.com
product-security@apple.com

Frequently asked questions

What is CVE-2026-39875?: CVE-2026-39875 is a high-severity vulnerability in Apple Macos, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2026-07-27.
How severe is CVE-2026-39875?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2026-39875 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.