CVE-2021-1816

HIGH

iPadOS < 14.5 - Remote Code Execution via Buffer Overflow

Title source: llm

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to execute arbitrary code with kernel privileges.

References (3)

Core 3

Core References

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT212317

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT212323

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT212324

Scores

CVSS v3 7.8

EPSS 0.0152

EPSS Percentile 71.4%

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-119

Status published

Products (4)

apple/ipados < 14.5

apple/iphone_os < 14.5

apple/tvos < 14.5

apple/watchos < 7.4

Published Sep 08, 2021

Tracked Since Feb 18, 2026