Improper input validation in macOS - CVE-2026-39868

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Main Vulnerability Database Vulnerabilities #VU137083

Improper input validation in macOS - CVE-2026-39868

Published: July 8, 2026


Vulnerability identifier: #VU137083
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-39868
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to insufficient input validation in Kernel. A local application can cause unexpected system termination or corrupt kernel memory.


Affected software

macOS
visionOS
tvOS
Apple iOS
iPadOS
watchOS

How to mitigate CVE-2026-39868

Install update from vendor's website.

macOS - addressed in versions 26.5.2 25F84, 14.8.8 23J620, 15.7.8 24G824
visionOS - update to 26.6
tvOS - update to 26.6 23L773
Apple iOS - addressed in versions 18.7.10 22H374, 26.5.2 23F84
iPadOS - addressed in versions 18.7.10 22H374, 26.5.2 23F84
watchOS - update to 26.6 23U67

External References

Related Security Bulletins