What is CVE-2026-43755?

CVE-2026-43755 is a high-severity vulnerability in Apple Macos, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2026-07-27.

How severe is CVE-2026-43755?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Apple Macos

CVE-2026-43755

A race condition was addressed with improved state management. This issue is fixed in macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to gain root privileges.

Vulnerability class: Race Condition

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Macos — versions 0

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

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

Frequently asked questions

What is CVE-2026-43755?: CVE-2026-43755 is a high-severity vulnerability in Apple Macos, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2026-07-27.
How severe is CVE-2026-43755?: High severity. CVSS v3 base score is 7.0 out of 10.