What is CVE-2026-43811?

CVE-2026-43811 is a medium-severity vulnerability in Apple Ios And Ipados, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2026-07-27.

How severe is CVE-2026-43811?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Vulnerability in Apple Ios And Ipados

CVE-2026-43811

A race condition was addressed with improved checks. This issue is fixed in iOS 26.6 and iPadOS 26.6. An app may be able to modify protected parts of the file system.

Vulnerability class: Race Condition

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Apple Ios And Ipados — versions 0
Apple Ipados
Apple Iphone_os

Weakness classification (CWE)

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

References

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

Frequently asked questions

What is CVE-2026-43811?: CVE-2026-43811 is a medium-severity vulnerability in Apple Ios And Ipados, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 4.7/10. Published 2026-07-27.
How severe is CVE-2026-43811?: Medium severity. CVSS v3 base score is 4.7 out of 10.