CVE-2021-30857

HIGH

iPadOS < 15.0 - Race Condition with Kernel Privilege Escalation

Title source: llm
STIX 2.1

Description

A race condition was addressed with improved locking. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.

References (6)

Core 6
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212804
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212805
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212807
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212814
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212819
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212815

Scores

CVSS v3 7.0
EPSS 0.0092
EPSS Percentile 55.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-362
Status published
Products (7)
apple/ipados < 15.0
apple/iphone_os < 15.0
apple/mac_os_x 10.15.7 (7 CPE variants)
apple/mac_os_x < 10.15.7
apple/macos 11.0 - 11.6
apple/tvos < 15.0
apple/watchos < 8.0
Published Aug 24, 2021
Tracked Since Feb 18, 2026