CVE-2020-9821

HIGH

iPadOS < 13.5 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A malicious application may be able to execute arbitrary code with kernel privileges.

References (4)

Core 4
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/HT211168
Vendor Advisory x_refsource_misc
https://support.apple.com/HT211170
Vendor Advisory x_refsource_misc
https://support.apple.com/HT211171
Vendor Advisory x_refsource_misc
https://support.apple.com/HT211175

Scores

CVSS v3 7.8
EPSS 0.0132
EPSS Percentile 67.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (5)
apple/ipados < 13.5
apple/iphone_os < 13.5
apple/mac_os_x < 10.15.5
apple/tvos < 13.4.5
apple/watchos < 6.2.5
Published Jun 09, 2020
Tracked Since Feb 18, 2026