CVE-2021-30786

Published: Sep 8, 2021Modified: Jun 17, 2026

7.0

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.0 / Impact: 5.9

Source: NVD

Description

A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.

Affected (2)

Products: Apple: Iphone Os, Macos

Apple

2 products

Iphone Os

Macos

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Apple Iphone Os	Before 14.7
Apple Macos	From 11.0 to 11.5

Related CWEs

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (4)

https://support.apple.com/en-us/HT212601

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212602

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212601

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

https://support.apple.com/en-us/HT212602

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

Timeline

No history available yet.