CVE-2026-39868CWE-20

CVE-2026-39868

Critical · published June 30, 2026

CVSS v3.1

9.1

EPSS

Percentile

52.0

In the wild

Unconfirmed

What it is

This issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.

The record

Technical detail

CVSS v3.1: 9.1 · CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0: Not supplied
EPSS: 0.00685 · 52.0th percentile
Weakness: CWE-20 · Improper Input Validation
Published: 2026-06-30T00:17Z

Affected products (3)

Product	Versions	Fixed in
apple/ipados	< 26.5.2	26.5.2
apple/iphone_os	< 26.5.2	26.5.2
apple/macos	< 26.5.2	26.5.2

References (8)

https://support.apple.com/en-us/127594 · [email protected]https://support.apple.com/en-us/127595 · [email protected]https://support.apple.com/en-us/128068 · [email protected]https://support.apple.com/en-us/128069 · [email protected]https://support.apple.com/en-us/128070 · [email protected]https://support.apple.com/en-us/128071 · [email protected]https://support.apple.com/en-us/128072 · [email protected]https://support.apple.com/en-us/148287 · [email protected]

EPSS history

Timeline

29 JUN 19:43Z
This issue was addressed with improved input validation
cvelistv5